American Family Field is a retractable roof stadium in Milwaukee, Wisconsin. Located southwest of the intersection of Interstate 94 and Brewers Boulevard, it is the ballpark of Major League Baseball's Milwaukee Brewers. It opened in 2001 as a replacement for Milwaukee County Stadium. The stadium was previously called Miller Park as part of a $40 million naming rights deal with Miller Brewing Company, which expired at the end of 2020.

American Family Field features North America's only fan-shaped convertible roof, which can open and close in less than 10 minutes. Large panes of glass allow natural grass to grow, augmented with heat lamp structures wheeled out across the field during the off-season.

The stadium opened in 2001 at a cost of $392 million. Between 1996 and 2000, taxpayers paid $609 million for the construction costs through higher sales taxes. In 2023, Wisconsin lawmakers entered into an agreement with the Milwaukee Brewers to spend nearly half a billion dollars of public funds on stadium renovations.

American Family Field was one of the largest construction projects in Wisconsin history. It was built with US$290 million of public funds from a 0.1% sales tax that began January 1, 1996, and ended on March 31, 2020. The tax was applied on purchases in Milwaukee County and four surrounding counties: Ozaukee, Racine, Washington, and Waukesha. The tax was controversial, in part because of the notion of using public funds for a privately owned sports team. The state senator who cast the deciding vote in the funding bill, George Petak of Racine, lost a recall election based on his vote for the stadium.

On November 9, 1996, groundbreaking took place in a parking lot behind County Stadium. Originally scheduled to open in 2000, American Family Field's construction was delayed after three construction workers were killed in an accident on July 14, 1999. A Lampson Transi-lift crane (nicknamed "Big Blue") brought in to build the roof collapsed while lifting a 450-ton roof section during windy conditions. A camera crew was filming construction of the stadium on that day and captured the collapse on video as it occurred. Repair work and an investigation forced the Brewers to stay in County Stadium for one more year, until 2001. There was some talk of having the Brewers move to American Family Field in the middle of 2000, but it was determined that too many issues would need to be resolved for it to be a realistic possibility.

The stadium was previously called Miller Park as part of a $40 million naming rights deal with Miller Brewing Company which expired at the end of 2020. Madison-based American Family Insurance purchased the naming rights in a new 15-year deal.

The unconventional fan-shaped retractable roof has not been without complications. Major elements of the pivot system behind home plate and the outfield roof track have been replaced, even after the crane incident.

At the end of the 2006 season, the roof's bogie system was replaced at a cost of over $13 million. The 10 new, 24-foot-long (7.3 m), 60 horsepower (45 kW) bogies were paid for with money from the settlement between the stadium district and Mitsubishi Heavy Industries of America. Six of the bogies weigh 66 short tons (59 long tons; 60 t), while the four others weigh 49 short tons (44 long tons; 44 t). The work was completed by lifting sections of the roof approximately 6 inches (15 cm) with Enerpac hydraulic lifts, while a 300-short-ton (270-long-ton; 270 t) crane replaced the bogies individually. "The bogies will last for the life of the facility," said Mike Duckett, executive director of the then named Miller Park stadium district. The project was completed by the start of the 2007 season.

In time for the 2006 season there were three additions to the stadium. Two sets of LED scoreboards were added. One replaced the formerly manually operated "out of town" scoreboards along the left and right field walls with a new set of LED scoreboards along the left-field wall. The new "out of town" scoreboards show the score of every Major League game on that day. A second-tier marquee scoreboard was also added along the bottom of the 300-level of the stadium stretching from foul pole to home plate to foul pole, with the portion closest to the foul lines used to provide open captions of announcements from the public address system and advertisements. The section of the second-tier scoreboard above home plate displays statistics for those unable to see the main scoreboard above the center-field wall. The final addition to American Family Field for the 2006 season was the addition of a field-level picnic area in the corner of right-field. The picnic area has a capacity of 75 and provides a place for fans to watch the game in a leisurely setting and be within feet of the right-fielder. Known first as the Mercedes-Benz Field Haus, the picnic area's name was changed to AirTran Airways Landing Zone in 2009, and to the ATI Club in 2012. In 2017, due to a contract dispute between ATI and the Brewers, it was apparently billed as the Right Field Patio until gaining its sponsorship as the Aurora Health Care Bullpen in 2018.

In 2009, American Family Field's outfield was replaced with "Lo-Mo" Kentucky bluegrass just like the infield was the prior year. The new turf, common in other ballparks around baseball, is denser and has a sand base, instead of the sand and clay mix under the original grass. The turf yields truer hops and fewer instances in which the baseball skips under an outfielder's glove than the previous turf.

During the off-season between 2010 and 2011, the stadium's original centerfield scoreboard (a smaller videoboard atop a larger black and amber message display board) was replaced by a full-length and full color Daktronics 1080p HD display board which was the ninth-largest screen among MLB stadiums as of 2012, along with a public address/sound system upgrade. By 2023, the relative screen size had dropped to 20th among the 30 MLB teams.

In late 2023, Wisconsin Governor Tony Evers signed into effect a bill totaling $500 million of taxpayer money to allow for repairs, ensuring the team remains in Milwaukee until 2050, despite threats of relocation by the MLB. Debuting in the 2024 season, American Family Field had many renovations done with the most notable changes being in center and right field, with a 12,077 square feet board in center, and a 2,840 square feet board in right. The Brewers partnered with ANC in order to provide the 8mm LED displays. The center field board ranks 3rd in the majors for overall size behind the New York Mets and Cleveland Guardians. The new center field board is over double the size of the old board at 5,940 square feet. LED displays were also added on the dugout and behind home plate. The 3rd Street Market Hall, a popular food hall and event venue in downtown Milwaukee, opened with four restaurants in the right field loge level. These vendors include: Kompali Tacos, Smokin' Jack's BBQ, Kawa (Asian fusion), and Anytime Arepa (Venezuelan). The team store in left field was also renovated.

The team also announced new parking technology in collaboration with the Interstate Parking Company, based out of Milwaukee. The goal of this partnership is to speed up the time it takes for parking at American Family Field, which can be up to an hour during the busiest times. Visitors may purchase parking in advance at a discounted rate, or may pay when they arrive via QR codes across the stadium grounds. Parking ambassadors aid in the parking process.

Plans for future improvements include a $25 million winterization of the stadium as well as improvements to the roof, elevators, suites, and other parts of the ballpark.

In June 2022 the Milwaukee Brewers major league baseball team announced that they would create a quiet area at American Family Field known as a sensory friendly area. The area was equipped with "sensory bags" to accommodate those with sensory processing disorders. The sensory bags will contain noise-cancelling headphones, a fidget toy, verbal cue cards and a weighted lap pad.

From the year American Family Field opened in 2001, the Brewers have averaged 31,783 fans per game, or 2,574,423 per season, while placing 11th out of 30 franchises in total attendance, despite having only eight winning seasons through the 2019 season, and having won only two MLB playoff series in just five total series appearances, and having the smallest market size of any Major League city. In 2011, the Brewers set a franchise record of 3,071,373, and beginning in 2004 they have attracted at least two million fans—an ongoing streak of 15 consecutive years, the 12th longest in Major League history. Prior to American Family Field, the previous such consecutive streak in Milwaukee baseball history was four years, from 1954 to 1957. Since 2007, except for the required reduced attendance in 2020 & 2021 due to the COVID-19 pandemic, the Brewers have drawn at least 2.5 million fans in 13 of 15 seasons, and have only had one season (2016), where they didn't average 30,000+ fans per game.

Home attendance at American Family Field

Year	Total attendance	Games	Game average	Major League rank
2001	2,811,041	81	34,704	11th
2002	1,969,153	81	24,311	19th
2003	1,700,354	81	20,992	25th
2004	2,062,382	81	25,462	20th
2005	2,211,023	81	27,297	18th
2006	2,335,643	81	28,835	17th
2007	2,869,144	81	35,422	12th
2008	3,068,458	81	37,882	9th
2009	3,037,451	81	37,499	9th
2010	2,776,531	81	34,278	11th
2011	3,071,373	81	37,918	7th
2012	2,831,385	81	34,955	11th
2013	2,531,105	81	31,248	15th
2014	2,797,384	81	34,536	8th
2015	2,542,558	81	31,390	13th
2016	2,314,614	81	28,575	16th
2017	2,627,705	81	31,282	10th
2018	2,850,875	81	35,196	10th
2019	2,923,333	81	36,091	7th
2020	0	30	0	-
2021	1,824,282	81	22,522	10th
2022	2,422,420	80	30,280	14th
2023	2,551,347	81	31,498	15th
2024	2,537,202	81	31,323	16th

Note: For the 2020 season, fans were not allowed in MLB stadiums due to the COVID-19 pandemic. For 2021, fans were allowed to attend, but for part of the season, it was with reduced capacity.

• Bernie Brewer, the team mascot, has a club house above the left field seats. Following every Brewers home run and victory, Bernie Brewer slides into a home plate shaped platform (The Kalahari "Splash Zone" was discontinued for the 2012 season). This is different from his old home at Milwaukee County Stadium, where Bernie slid into a giant mug of beer in center field which had been sponsored over the years by Pabst, Miller, and Sentry Foods. During the home run celebration, a short burst of fireworks is shot out from the top of the center field scoreboard, and above Bernie's club house, the call words of Brewers' radio announcer Bob Uecker are illuminated, "Get Up, Get Up, Get Outta Here, Gone!"
• The Hank the Dog mascot made his debut on September 13, 2014. Hank the real dog was found wandering the field at the Spring training complex in Maryvale, Arizona, on February 17, 2014. He was named after former Brewer and Braves great Hank Aaron. He would soon become an international sensation.
• The Barrelman mascot made his debut on April 6, 2015. The barrelman served as the team's primary logo from 1970 to 1977.
• The Johnsonville Sausage Race occurs during each game in the middle of the 6th inning; it was moved from the bottom of the 6th inning to enable the sausages to create more excitement for the fans as the Brewers prepared to bat. The current "racing sausages" are the Bratwurst, the Polish, the Italian, the Hot Dog and the Chorizo. The chorizo sausage (to salute the region's growing Latino population) was added on July 29, 2006, for one race, and became a full-time participant in 2007.
• During the 7th inning stretch, in addition to "Take Me Out to the Ballgame", fans at American Family Field sing "Roll Out the Barrel", in salute to Milwaukee's beer-making history.
• The Brewers have also set statues of legendary Milwaukee players Robin Yount and Hank Aaron outside the front entrance of American Family Field, as well as a statue of former team owner and MLB commissioner Bud Selig and one for Brewers longtime radio broadcaster Bob Uecker. An additional sculpture of Uecker was added to the highest point of seats in the ballpark, in reference to Uecker's famed Miller Lite commercial where he says, "I must be in the front row", and he's placed at the highest point of the ballpark instead.
• Another sculpture, Teamwork by Omri Amrany, honors three Iron Workers Local 8 members killed during the construction of the stadium.
• Helfaer Field is a youth baseball facility located outside American Family Field. The infield is laid out upon the former footprint of the County Stadium infield, albeit in smaller Little League-compliant dimensions. The groundbreaking ceremony was held in August 2001. It was named in honor of the Evan and Marion Helfaer Foundation, which was founded in 1974. Evan Helfaer was an original investor in the Brewers.
• The American Family Field Walk of Fame was created in 2001 to honor both the Milwaukee Brewers and the Milwaukee Braves. It is located outside American Family Field on the plaza near the home plate entrances. Its most recent additions were former Brewers first baseman Prince Fielder in 2022, starting pitcher Ben Sheets in 2023, and outfielder Ryan Braun in 2024.
• The Brewers Wall of Honor was created in 2014 to commemorate Brewers players, coaches and executives who meet a set criteria based on service to the club or career accomplishments. It is located outside American Family Field on an exterior wall near the Hot Corner entrance. Brewers TV announcer Bill Schroeder became the 59th honoree on July 17, 2015.
• The Selig Experience is an exhibit to honor former Brewers owner and retired MLB commissioner Allan H. (Bud) Selig. It opened on May 29, 2015.

On opening day April 6, 2001, President George W. Bush and MLB Commissioner Bud Selig had first pitch honors for the stadium. The park hosted the 2002 MLB All-Star Game, which ended infamously in a tie.

In April 2007, snow storms in northern Ohio caused the Cleveland Indians to postpone their home opening series against the Seattle Mariners and forced the Indians to find a different location for their home series against the Los Angeles Angels of Anaheim. Major League Baseball took advantage of American Family Field's roof and moved the Indians-Angels series to Milwaukee. All seats were sold for $10 apiece, and attendance was 52,496 for the three games. The series was a reminder to many of the 1989 film Major League, which featured scenes filmed in Milwaukee County Stadium, though the film was about a fictionalized Cleveland Indians team. The first game of the series was played on the same day that the film's "Wild Thing Edition" was released on DVD. When Joe Borowski came in to close for the Indians, the song "Wild Thing" was played over the PA system, in an homage to the film. Also, the Indians' mascot Slider slid down Bernie Brewer's slide following Indians home runs. These games were the first to be played under American League rules in Milwaukee since 1997 (the Brewers' final season in the AL). Some Milwaukee fans commemorated the occasion by making unofficial t-shirts that said, "The Cleveland Indians of Milwaukee; Established 1989, Re-established 2007."

Hurricane Ike's landfall in Houston forced the Chicago Cubs and Houston Astros to play a two-game series at American Family Field on Sunday, September 14 and Monday, September 15, 2008. The park became the first neutral site in Major League history to host a no-hitter, when Carlos Zambrano of the Chicago Cubs threw the first no-hitter in the history of the park against the Houston Astros on Sunday, September 14, 2008. The next day, his teammate Ted Lilly, took a no-hitter into the 7th inning.

American Family Field hosted the 2007 United States Bowling Congress Masters finals on Sunday, October 28, 2007. The playing surface was fitted with four bowling lanes for the tournament.

Date	Artist	Opening act(s)	Tour / Concert name	Attendance	Revenue	Notes
May 19, 2001	George Strait	Alan Jackson Lonestar Lee Ann Womack Brad Paisley Sara Evans Asleep At The Wheel BR549	George Strait Country Music Festival	—	—
June 26, 2001	'N Sync	Eden's Crush A*Teens Meredith Edwards 3LW	PopOdyssey	34,148 / 44,978	$1,956,157
September 27, 2003	Bruce Springsteen and the E Street Band	—	The Rising Tour	32,812 / 40,566	$2,451,588
July 9, 2004	Randy Travis	—	—	—	—
August 20, 2005	Bon Jovi Goo Goo Dolls Robert Randolph and the Family Band	—	Miller Brewing's 150th Anniversary Celebration	—	—
August 28, 2008	Kid Rock Sugarland	—	Harley Owners Group Anniversary Rally	—	—
October 2, 2010	Dave Matthews Willie Nelson Neil Young John Mellencamp and many others	—	Farm Aid's 25th Anniversary concert	—	—	The first time the charity event was held at a major league stadium.
May 18, 2013	Kenny Chesney Eric Church	Eli Young Band Kacey Musgraves	No Shoes Nation Tour	43,314 / 43,314	$4,306,664
July 16, 2013	Paul McCartney	—	Out There	43,747 / 43,747	$4,114,943	Concert set an American Family Field record for largest non-baseball attendance
August 25, 2015	One Direction	Icona Pop	On the Road Again Tour	37,887 / 37,887	$3,256,963
June 18, 2016	Kenny Chesney	Miranda Lambert Little Big Town Old Dominion	Spread the Love Tour	41,342 / 41,342	$4,812,602
April 28, 2018	Kenny Chesney	Thomas Rhett Old Dominion Brandon Lay	Trip Around the Sun Tour	43,526 / 43,526	$5,136,660
October 24, 2018	Ed Sheeran	Snow Patrol	÷ Tour	37,288 / 37,288	$3,390,498	Originally scheduled for October 23 but was rescheduled to give more time for stage setup after the 2018 National League Championship Series ended on October 20 (it would have moved to November had the Brewers advanced to the 2018 World Series).
April 26, 2019	Billy Joel	—	Billy Joel in Concert	41,237 / 41,237	$4,197,551
May 14, 2022	Kenny Chesney	Dan + Shay Old Dominion Carly Pearce	Here and Now Tour	41,138 / 41,138	$5,459,692	Event was postponed from April 25, 2020, and May 8, 2021, due to the COVID-19 pandemic. First show at the stadium as American Family Field.
May 28, 2022	Eric Church	Brothers Osborne Parker McCollum	—	—	—
July 17, 2022	Mötley Crüe & Def Leppard	Poison Joan Jett & The Blackhearts	The Stadium Tour	39,864 / 39,864	$5,175,001	The event was the fastest sellout in American Family Field history.
April 14, 2023	Morgan Wallen	Ernest Bailey Zimmerman Hardy	One Night at a Time World Tour	—	—	First artist to perform twice on one tour.
April 15, 2023
June 3, 2023	George Strait	Chris Stapleton Little Big Town	2023 Stadium Shows	46,641 / 46,641	-
August 14, 2023	P!NK	Grouplove Pat Benatar & Neil Giraldo	Summer Carnival	46,644 / 46,644	-	First female to headline any stadium in Wisconsin. Broke American Family Field concert attendance record.
April 12, 2024	Luke Combs		Growin’ Up And Gettin’ Old Tour
April 13, 2024
June 22, 2024	Kenny Chesney Zac Brown Band	Megan Moroney Uncle Kracker	Sun Goes Down 2024 Tour
August 24, 2024	Green Day	The Smashing Pumpkins Rancid The Linda Lindas	The Saviors Tour

During the 2014 All-Star break, American Family Field hosted an untelevised international friendly match between Swansea City and Chivas of Guadalajara on July 16, 2014. The soccer pitch was laid out in a first baseline-to-left field configuration, with a narrower width than a standard soccer pitch due to the constraints of the field. The teams played to a 1–1 draw in front of about 31,000 in attendance.

During the 2015 All-Star Break, American Family Field hosted a friendly between Mexican side Club Atlas and English Premier League side Newcastle United on July 14, 2015. Club Atlas won the match 2–1.

After a three-year hiatus, American Family Field once again hosted a friendly match between Mexican sides C.F. Pachuca and Club León. Pachuca won the match 3–1.

Date	Winning Team	Result	Losing Team	Tournament	Spectators
July 16, 2014	Swansea City	1-1	Guadalajara	International Friendly	31,000
July 14, 2015	Club Atlas	2-1	Newcastle United		21,256
July 11, 2018	C.F. Pachuca	3-1	Club León		18,321

On November 11, 2022, the University of Wisconsin Badgers hosted a basketball doubleheader at American Family Field called the "Brew City Battle". The event featured the Wisconsin Badgers men's team playing against the Stanford University Cardinal and the Wisconsin Badgers women's team playing against the Kansas State Wildcats. The Badgers beat the Cardinal 60 to 50 in the men's game while they lost 63 to 77 in the women's game against the Wildcats.

On August 11, 2012, American Family Field hosted an event called "Field of Honor: A Salute to the Greatest Generation". Over 30,000 tickets were sold for the event, which included the premiere showing of Honor Flight, a documentary detailing the Honor Flight movement, where veterans of World War II are flown into Washington, D.C., on commercial flights via donations and non-profit organizations in order to visit the National World War II Memorial in person.

The Arctic Tailgate is an annual event where fans camp outside American Family Field the day before single game tickets are sold, which is usually the last weekend of February. (It is delayed or moved into the stadium's heated concourse if the temperatures are well below 0 °F (−18 °C) for the safety of fans.) The tradition is said to have started as early as the 1990s where Brewers fans would try to be the first to acquire tickets for Opening Day. Since 2006, the Brewers have made it an official event, even providing the waiting fans coffee, hot chocolate, and doughnuts in the morning, discounts on tickets for the first week of games in the season, as well as a free lunch consisting of a hot dog, chips, and a soda, eaten in a heated tent afterwards. Over 101,000 tickets were sold for the 2015 Arctic Tailgate.

American Family Field was also a major filming location for the motion picture Mr. 3000, which centered on a fictional Brewers player played by comedian Bernie Mac.

American Family Field Climate chart (explanation) J F M A M J J A S O N D     97     −5 −11     101     −2 −10     68     6 −6     165     18 3     111     22 7     138     24 15     100     29 18     95     29 18     67     24 14     92     16 7     64     9 0     78     −2 −8 █ Average max. and min. temperatures in °C █ Precipitation totals in mm Source: Imperial conversion J F M A M J J A S O N D     3.8     23 12     4     28 14     2.7     43 21     6.5     64 37     4.4     72 45     5.4     75 59     3.9     84 64     3.7     84 64     2.6     75 57     3.6     61 45     2.5     48 32     3.1     28 18 █ Average max. and min. temperatures in °F █ Precipitation totals in inches

• 
  American Family Field, then known as Miller Park, during construction on March 31, 2000. Milwaukee County Stadium is adjacent.
• 
  Exterior view showing retractable roof.
• 
  American Family Field in 2006.
• 
  American Family Field in 2009.
• 
  American Family Field panorama (August 20, 2013).
• 
  American Family Field with the roof closed in 2023.
• 
  Former logo as Miller Park

• List of baseball parks in Milwaukee
• List of NCAA Division I baseball venues
• Teamwork, a memorial sculpture at the stadium
• Selig Monument, a sculpture in tribute to Bud Selig

• American Family Field
• Southeast Wisconsin Professional Baseball Park District