Woodbridge is a very large suburban community in Vaughan, Ontario, Canada, along the city's border with Toronto. It occupies the city's entire southwest quadrant, west of Highway 400, east of Highway 50, north of Steeles Avenue, and generally south of Major Mackenzie Drive. It was once an independent village before being amalgamated with nearby communities to form the city in 1971. Its traditional downtown core is the Woodbridge Avenue stretch between Islington Avenue and Kipling Avenue north of Highway 7.

The community had its origins with the British Crown granting the west half of lots six and seven, concession 7 of Vaughan Township to Jacob Philips and Hugh Cameron in 1802. Woodbridge had its beginnings in what is today Pine Grove. During the early half the 19th century, a school was built on Vaughan's eighth concession; and a flour mill and store flourished. A scattering of houses arose around Smith's mill (later Hayhoe Mills), Smith's mill later became known as Smithsville, and then Pine Grove. Another nearby settlement to the south, known as Brownsville, came into being around a mill run by John Brown on the Humber River at present-day Highway 7 and Islington Avenue, south of the original Woodbridge village. Woodbridge itself, however, did not begin to take the form of a settlement or village until the arrival of Rowland Burr in 1837, a local highly-regarded architect and builder at the time. It had been named after him prior to his arrival, and he moved there to reside in a log house in the growing village near the Humber River. He later moved south down the Humber to Weston in 1846.

Before 1855, Woodbridge was known as the village of Burwick, but was renamed because when the town applied for a post office that year, there was already a settlement named Burwick in the province. The name "Woodbridge" was put forward by the son-in-law of John Gamble (reeve of Vaughan at the time) after his home town in England. It was also suitable due to the many bridges in the area across the Humber River. Woodbridge eventually overtook, and later included, nearby Pine Grove after it was incorporated in 1882. Brownsville also became part of Woodbridge.

John Abell was another notable early entrepreneurial figure that shaped the village of Burwick/Woodbridge. A major industry over time, Abell Agricultural Works opened in 1862 and had 200 employees by 1874, making steam-powered agricultural equipment. The Toronto, Grey and Bruce Railway arrived from Weston in 1870. This line was constructed as a narrow gauge railway through Caledon and completed to Owen Sound in 1873. Owing to financial difficulty, it was operated by the Grand Trunk Railway until 1883, when it was leased to the Canadian Pacific Railway. Conversion to standard gauge required realigning some of the track curves, particularly around Woodbridge. In 1908 this line was linked to the transcontinental route through Sudbury, with the original route between Bolton and Orangeville being abandoned in 1934.

By 1880, the settlement had two general stores, a carriage works, two churches, a school, two hotels, a library, two newspapers and a post office. As the population increased it was pressured by the citizens to add a post office so there would be no confusion with another settlement in Canada West. By 1882, Woodbridge had over a thousand residents and was incorporated as a village.

Woodbridge was also served by a branch of the Toronto Suburban Railway from 1914 until 1926. The radial railway from Weston came in to downtown Woodbridge along the west side of the Humber River, north of Humber Summit, after descending from its route along Albion Road and Kipling Avenue. It handled passenger traffic until 1925, and freight traffic (express runs for farmers shipping milk into the city) for a time later but the line was abandoned in May 1926.

Construction of Highway 7 began in the 1920s, passing south of the business section via an underpass of the Canadian Pacific. As Woodbridge is on the Humber floodplain, Hurricane Hazel in 1954 devastated the community as the river swelled from its usual width of 20 m (66 ft) at its narrowest point to 107 m (351 ft), and left hundreds homeless and nine dead. At this time, the land around much of Woodbridge was agricultural. Slowly, rural homes were built in the surrounding area.

In the 1950s, Woodbridge experienced spillover growth from suburban Metropolitan Toronto, which ultimately led to its defined area expanding far beyond the village's then-incorporated boundaries. Later, many Italians that settled in Toronto neighbourhoods such as Little Italy, moved to the suburbs and exurbs, in particular Woodbridge. The suburban expansion began east of the Humber and East Humber and to the northeast. Prior to the expansion, the urban area was up to Kipling Avenue and to the Humber. It later expanded in the west up to present-day Martin Grove Road and north to northeast of Langstaff Road in the 1960s. It later expanded further north in the 1970s and 1980s. A drive-in theatre was situated on Langstaff Road east of Highway 27. Operating from 1967 to 1997, the site was developed for housing in 1998.

The Village of Woodbridge, along with other communities within Vaughan Township, was amalgamated to form the new Town (now City) of Vaughan in 1971.

The housing developments in the west expanded north to Langstaff. Development continued in the central part of Woodbridge (including the transformation of older stores in the village into smaller units of housing) in the early 1980s and west to Highway 27 in the late 1980s and early 90s. Development extended north to just south of Rutherford Road in the 1980s and east up to Weston Road from Highway 7 to south of Rutherford Road and south to north of the present-day Highway 407. The industrial areas began appearing first to the west and then to the southwest and east.

After the aforementioned drive-in was closed, Martin Grove Road was extended northward through the former property to serve more developments. Woodbridge Highlands was formed in the northwest, east of Highway 27 in the 1990s. In 1994 housing developments reached to Rutherford and continued until 1996 except for the northeast and the southeastern part. The condominiums began construction and now appear between Woodbridge Avenue and the Humber. Sonoma Heights at Islington and Rutherford and the Vellore area at Weston and Rutherford have been developed. The Vellore area includes Vellore Village developed by builders such as Greenpark Homes, Aspen Ridge Homes and Remington Homes. The Vellore Woods area was developed by Arista Homes and Fieldgate Homes. Development in the west end of Woodbridge then followed with Weston and Rutherford Roads becoming a major focal point for the building of additional residential units stretching north to Major Mackenzie. Land on both sides of Weston Road to Major Mackenzie were completely filled in.

Woodbridge Avenue between Islington Avenue and Kipling Avenue was once home to some of the historical buildings from the late 19th century in addition to newer 1920s–1960s buildings, but is rapidly being reconstructed. Two examples of a historic buildings include a Tinsmith Shop and Masonic Lodge (c. 1850) and the Burwick family home (from 1844 on Pine Street) that were moved to Black Creek Pioneer Village. Market Lane remains the commercial hub of this area, with several other shops and stores lining Woodbridge Avenue.

Woodbridge was chosen as the new location for a research based mental health facility, the OCD and Anxiety Clinic of Ontario. First of its kind, it offers specialized psychological care by offering case by case care, as opposed to a volume patient care model.

An F2 tornado tore through the city of Vaughan during the Southern Ontario Tornado Outbreak on 20 August 2009. The tornado also ripped up trees, flipped cars, and left thousands of people without power. No one was killed.

Situated in hilly terrain of the Humber River Valley, historic Woodbridge rests at an average elevation of 200 metres between Highway 27 and Pine Valley Drive. The terrain can be described as a series of rolling hills and valleys. There are numerous valley intersections that demonstrate the geography of the area, notably Highway 7 and Islington and Highway 27 and Rutherford.

The area was mainly farmland before the onset of suburbanization in the 1970s, but the residential communities are interspersed with forests along the Humber River and its eastern branch. Today, much of the area is residential with commercial and industrial properties to the south, close to Steeles Avenue and to the east near Pine Valley Drive.

The area commonly considered to be Woodbridge today covers a very large portion (roughly one-third) of Vaughan, and is usually seen as being bounded by Highway 50 or Highway 27 to the west, Steeles Avenue to the south, Highway 400 to the east, and Major Mackenzie Drive to the north, although this boundary appears to be expanding northwards along Highway 400 as urbanization progresses.

Woodbridge has a humid continental climate (Köppen climate classification Dfb), with warm, humid summers and cold, snowy winters. Woodbridge winters feature cold snaps where maximum temperatures remain below −10 °C (14 °F), often made to feel colder by wind chill. Accumulating snow can fall any time from October until April. Summer in Woodbridge is characterized by long stretches of humid weather. Spring and autumn are transitional seasons, with generally mild or cool temperatures and alternating dry and wet periods. According to the USDA plant hardiness level, Woodbridge is 5a.

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As of the 2021 census, the population of Woodbridge is 106,810, a 1.5% increase from the 105,228 population in 2016. As of the 2021 census, the top three ethnic groups in Woodbridge are Italian (49,660; 46.7%; which, until the most recent census, was the highest concentration in Canada, now second to Nobleton), East Indian (5,815; 5.5%), Canadian (5,655; 5.3%).

Woodbridge is home to two natural preserves along the Humber River:

• Boyd Conservation Area
• Kortright Centre for Conservation
• Doctors McLean District Park
• Rainbow Creek Park
• Woodbridge Fairgrounds
• Fundale Park
• Maxey Park

• Market Lane
• Memorial Hill with a tower
• Pierre Berton Library
• Boyd Conservation Area
• Kortright Centre

• Blue Willow Public School
• Emily Carr Secondary School
• Father Bressani Catholic High School
• Fossil Hill Public School
• Elders Mills Public School
• Holy Cross Catholic Academy
• Immaculate Conception Catholic Elementary School
• Lorna Jackson Public School
• North Hill Private School
• Our Lady of Fatima Catholic Elementary School
• Pine Grove Public School
• Pierre Berton Public Elementary School
• San Marco Catholic Elementary School
• St. Agnes of Assisi Elementary School
• St. Andrew Catholic Elementary School
• St. Angela Merici Catholic Elementary School
• St. Catherine of Siena Catholic Elementary School
• St. Clare Catholic Elementary School
• St. Clement Catholic Elementary School
• St. Francis of Assisi Catholic Elementary School
• St. Gabriel the Archangel Catholic Elementary School
• St. Gregory the Great Academy
• St. Jean de Brebeuf Catholic High School
• St. Emily Catholic Elementary School
• St. John Bosco Catholic Elementary School
• St. Margaret Mary Catholic Elementary School
• St. Padre Pio Catholic Elementary School
• St. Peter Catholic Elementary School

• St. Stephen Catholic Elementary School
• Tommy Douglas Secondary School
• Toronto District Christian High School
• Vellore Woods Public School
• Woodbridge College
• Woodbridge Montessori School (Private Elementary)
• Woodbridge Public School
• Glenn Gould Public School
• St.Michael the Archangel Catholic Elementary

• Elizabeth Arden, founder of cosmetic company of the same name
• Robert Barbieri, professional rugby player
• Mark Bocek, UFC fighter
• Jesse Carere, actor
• Anthony Cirelli, hockey player
• Andrew Cogliano, NHL player
• Frank Corrado, NHL player
• Mark Cundari, NHL player
• Chris DiDomenico, NHL player
• Natalie Di Luccio, international multilingual singer
• Sergio Di Zio, actor
• Steve Eminger, AHL player
• Danny Fernandes, singer
• Mike Harris, 22nd premier of Ontario
• Jimmy Jones, NHL player
• Stephen Lecce, Ontario minister of education
• Mike Liambas, NHL player
• Marc Liegghio, Canadian Football League player
• Victor Mete, NHL player
• Steve Nease, cartoonist
• Michael Petrasso, soccer player
• Dina Pugliese, television personality
• Marco Reda, professional soccer player
• David Rocco, actor and television cooking show host
• Vince Rocco, ice hockey player
• Arthur Evans Snell, 10th Canadian Surgeon General
• Marco Terminesi, soccer player

The song "The Woodbridge Dog Disaster" by Canadian folk singer Stan Rogers, detailing a fictional occurrence in the community, was recorded in the 1970s.