Celebrity Big Brother is the American adaptation of Celebrity Big Brother and second spin-off of the United States version of Big Brother. It premiered on CBS on February 7, 2018 as counterprogramming to the 2018 Winter Olympics. The series is hosted by Julie Chen Moonves, and is produced by Fly on the Wall Entertainment in association with Endemol Shine North America; Allison Grodner and Rich Meehan serve as executive producers.

The Celebrity HouseGuests for the first season were revealed during a live pre-show of the 2018 Grammy Awards on January 28, 2018. The first season began filming on January 31, 2018 and concluded twenty-six days later on February 25, 2018, when Marissa Jaret Winokur and Ross Mathews were announced as the winner and runner-up of the season, respectively. On May 5, 2018, CBS renewed the series for a second season, which premiered on January 21, 2019. Twelve HouseGuests were announced on January 13, 2019, during a commercial break of CBS's NFL football coverage. The second season lasted for twenty-nine days and ended on February 13, 2019, when Tamar Braxton won in a unanimous vote over Ricky Williams.

After a three-year hiatus the series was revived for a third season that premiered on February 2, 2022, this time as counterprogramming to the 2022 Winter Olympics. This is the first season to follow casting quotas for CBS, set in 2020, requiring at least half of the contracted celebrities to be black, indigenous, (and) people of color. The eleven HouseGuests were later revealed on January 26, 2022, during a commercial break for The Amazing Race. Twenty-nine days later on February 23, 2022, Miesha Tate defeated Todrick Hall in a 7 to 1 vote by the eliminated contestants.

Thirty-four participants have competed in Celebrity Big Brother, but Anthony Scaramucci was declared to be a fake HouseGuest as part of a twist. The series follows a format similar to the main edition in which players leave the game when they are "evicted" from the house by vote of their fellow HouseGuests. In 2018, Mathews and Jaret Winokur received their own aftershow, Off the Block with Ross and Marissa, that aired alongside the twentieth season of Big Brother. In addition, some of the contestants returned for the subsequent seasons of both the celebrity and civilian editions to host competitions. Brandi Glanville previously participated in the twentieth season of the United Kingdom's version of Celebrity Big Brother while Omarosa was a contestant in the Australian version of Celebrity Big Brother, entitled Big Brother VIP.

Contestants

Table of Celebrity Big Brother HouseGuests

Season	Name	Age	Hometown	Profession	Status	Finish	Ref.
CBB 1	Chuck Liddell	48	Calabasas, CA	Retired UFC fighter	Evicted: Day 10	11th
	Keshia Knight Pulliam	38	Atlanta, GA	Actress/entrepreneur	Evicted: Day 13	10th
	Shannon Elizabeth	44	Cape Town, South Africa	Actress/conservationist	Evicted: Day 17	9th
	Metta World Peace	38	Los Angeles, CA	Former NBA player	Evicted: Day 20	8th
	Brandi Glanville	45	Los Angeles, CA	Reality television personality	Evicted: Day 24	7th
	James Maslow	27	Venice, CA	Actor/musician	Evicted: Day 24	6th
	Omarosa Manigault	44	Jacksonville, FL	Television personality	Evicted: Day 26	5th
	Ariadna Gutiérrez	24	Miami, FL	Actress/model	Evicted: Day 26	4th
	Mark McGrath	49	Studio City, CA	Musician	Evicted: Day 26	3rd
	Ross Mathews	38	Palm Springs, CA	Television host	Finalist: Day 26	2nd
	Marissa Jaret Winokur	44	Toluca Lake, CA	Actress	Finalist: Day 26	1st
CBB 2	Anthony Scaramucci	55	Port Washington, NY	Former White House director of communications/financier	Left: Day 6	Fake HouseGuest
	Jonathan Bennett	37	Rossford, OH	Actor/Talk show host	Evicted: Day 10	11th
	Ryan Lochte	34	Daytona Beach, FL	12-time Olympic medal-winning swimmer	Evicted: Day 13	10th
	Joey Lawrence	42	Philadelphia, PA	Actor/producer	Evicted: Day 18	9th
	Kato Kaelin	59	Milwaukee, WI	Actor/host	Evicted: Day 20	8th
	Natalie Eva Marie	34	North Tustin, CA	Former WWE wrestler/Actress	Evicted: Day 24	7th
	Tom Green	47	Ottawa, Ontario	Comedian	Evicted: Day 24	6th
	Kandi Burruss	42	Atlanta, GA	Singer/reality television personality	Evicted: Day 29	5th
	Dina Lohan	56	Long Island, NY	Momager	Evicted: Day 29	4th
	Lolo Jones	36	Baton Rouge, LA	Olympic track and bobsled star	Evicted: Day 29	3rd
	Ricky Williams	41	Venice Beach, CA	Former NFL running back	Finalist: Day 29	2nd
	Tamar Braxton	41	Washington, DC	Singer/reality television personality	Finalist: Day 29	1st
CBB 3	Teddi Mellencamp	40	Bloomington, IN	Television personality	Evicted: Day 10	11th
	Mirai Nagasu	28	Montebello, CA	Olympic medalist	Evicted: Day 13	10th
	Chris Kattan	51	Los Angeles, CA	Comedian	Walked: Day 15	9th
	Chris Kirkpatrick	50	Clarion, PA	Pop star	Evicted: Day 17	8th
	Shanna Moakler	46	Providence, RI	Actress/former Miss USA	Evicted: Day 20	7th
	Carson Kressley	52	Allentown, PA	Television personality	Evicted: Day 24	6th
	Lamar Odom	42	New York, NY	Former NBA forward	Evicted: Day 27	5th
	Todd Bridges	56	San Francisco, CA	Actor	Evicted: Day 27	4th
	Cynthia Bailey	54	Tuscumbia, AL	Model/television personality	Evicted: Day 29	3rd
	Todrick Hall	36	Plainview, TX	Entertainer	Finalist: Day 29	2nd
	Miesha Tate	35	Tacoma, WA	UFC mixed martial artist	Finalist: Day 29	1st