Tribeca (sometimes stylized as TriBeCa) is a neighborhood in Lower Manhattan, New York in the United States. Its name is a portmanteau composed of the words "Triangle below Canal Street", and is properly bounded by Canal Street, West Street, Broadway, and Chambers Street.

The Tribeca name came to be applied to the area south of Canal Street, between Broadway and West Street, extending south to Chambers Street. The area was among the first residential neighborhoods developed in New York beyond the boundaries of the city during colonial times, with residential development beginning in the late 18th century. By the mid-19th century the area transformed into a commercial center, with large numbers of store and loft buildings constructed along Broadway in the 1850s and 1860s.

Development in the area was spurred by the extension of the IRT Broadway – Seventh Avenue Line, which opened for service in 1918, and the accompanying extension of Seventh Avenue and the widening of Varick Street during subway construction in 1914. That resulted in better access to the area both for vehicles and for travelers using public transportation. The area was also served by the IRT Ninth Avenue Line, an elevated train line on Greenwich Street demolished in 1940.

By the 1960s Tribeca's industrial base had all but vanished. The predominance of empty commercial space attracted many artists to the area in the 1970s. Since the 1980s, large scale conversion of the area has transformed Tribeca into an upscale residential area.

In 1996, the Tribeca Open Artist Studio Tour was founded as a non-profit, artist-run organization with the mission to empower the working artists of Tribeca while providing an educational opportunity for the public. For 15 years, the annual free walking tour through artist studios in Tribeca has allowed people to get a unique glimpse into the lives of Tribeca's premiere creative talent. Tribeca suffered financially after the September 11, 2001 terrorist attacks, but government grants and incentives helped the area rebound fairly quickly. The Tribeca Film Festival was established to help contribute to the long-term recovery of lower Manhattan after 9/11. The festival also celebrates New York City as a major filmmaking center. The mission of the film festival is "to enable the international film community and the general public to experience the power of film by redefining the film festival experience." Tribeca is a popular filming location for movies and television shows.

Today, Tribeca is one of America's most fashionable and desirable neighborhoods and is known for its celebrity residents. In 2006 Forbes magazine ranked its 10013 zip code as New York City's most expensive.

In the early 1970s, a couple of years after artists in SoHo were able to legalize their live/work situation, artist and resident organizations in the area to the south, known then as Washington Market or simply the Lower West Side, sought to gain similar zoning status for their neighborhood.

A group of Lispenard Street artist/residents living on tax block number 210, directly south of Canal Street between Church Street and Broadway, in an area now part of the landmarked Tribeca Historic District, joined the effort. Just as the members of the SoHo Artists Association called their neighborhood ‘SoHo’ after looking at a City Planning map which marked the area as ‘South of Houston' (city planners had been casually using the word 'SoHo' as well), these Lispenard Street residents likewise employed a City Planning map to describe their block.

Lispenard Street, a single block immediately below Canal Street, is wide on the Church Street side but is narrower at Broadway. Thus, it appears as a triangle on City maps, not like a rectangle as most city blocks are depicted. The Lispenard Street residents decided to name their group the Triangle Below Canal Block Association, and, as activists had done in SoHo, shortened the group’s name to the Tribeca Block Association.

A reporter covering the zoning story for the New York Times came across the block association’s submission to City Planning, and mistakenly assumed that the name Tribeca referred to the entire neighborhood, not just one block. Once the “newspaper of record” began referring to the neighborhood as Tribeca, it stuck. This was related by former resident and councilmember for the area, Kathryn Freed, who was involved in the 1970s Tribeca zoning effort.[citation needed]

As of the 2000 census, there were 10,395 people residing in Tribeca. The population density was 31,467 people per square mile (12,149/km2). The racial makeup of the neighborhood was 82.34% White, 7.96% Asian, 0.03% Pacific Islander, 4.89% African American, 0.10% Native American, 1.66% from other races, and 3.02% from two or more races. 6.34% of the population were Hispanic of any race. Of the 18.2% of the population that was foreign born, 41.3% came from Europe, 30.1% from Asia, 11.1% from Latin America, 10.2% from North America and 7.3% from other.

Tribeca is dominated by former industrial buildings that have been converted into residential buildings and lofts, similar to those of the neighboring SoHo Cast Iron Historic District. In the nineteenth and early 20th centuries, the neighborhood was a center of the textile/cotton trade.

Notable buildings in the neighborhoods include the historic neo-Renaissance Textile Building built in 1901 and designed by Henry J. Hardenbergh, the Powell Building, a designated Landmark on Hudson Street, which was designed by Carrère and Hastings and built in 1892. At 73 Worth Street there is a handsome row of neo-Renaissance White Buildings built at the end of the Civil War in 1865. Other notable buildings include the New York Telephone Company building at 140 West Street with its Mayan-inspired Art Deco motif, and the former New York Mercantile Exchange at 6 Harrison Street.

During the late 1960s and '70s, abandoned and inexpensive Tribeca lofts became hot-spot residences for young artists and their families because of the seclusion of lower Manhattan and the vast living space. Jim Stratton, a Tribeca resident since this period, wrote the 1977 nonfiction book entitled "Pioneering in the Urban Wilderness," detailing his experiences renovating lower Manhattan warehouses into residences.

The Tribeca Historic Districts are a combination of four different historic zones within the Tribeca section of borough of Manhattan. The districts include Tribeca South & Extension, designated in 1992 and 2002; Tribeca East, designated in 1992; Tribeca West, designated in 1991; and Tribeca North, designated in 1992.

Robert De Niro and Jane Rosenthal had high profiles in the district's revival when they co-produced the dramatic television anthology series TriBeCa in 1993 and co-founded the annual Tribeca Film Festival in 2002. De Niro also claimed ownership of all domain names incorporating the text "Tribeca" for domain names with any content related to film festivals. In particular, he had a dispute with the owner of the website tribeca.net.

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