Williamsburg is a neighborhood in the New York City borough of Brooklyn, bordering Greenpoint to the north, Bedford–Stuyvesant to the south, Bushwick and Ridgewood, Queens to the east and the East River to the west. The neighborhood is part of Brooklyn Community Board 1. The neighborhood is served by the New York Police Department (NYPD)'s 90th Precinct. In the City Council the western and southern part of the neighborhood is represented by the 33rd District; and the eastern part of the neighborhood is represented by the 34th District.

Many ethnic groups have enclaves within Williamsburg, including Italians, Puerto Ricans, and Dominicans. There is also a number of Hasidic Jews. It is also an influential hub for indie rock, hipster culture, and the local art community. The neighborhood is being redefined by a growing population and the rapid development of housing and retail space particularly catered to a wealthy population that has been historically foreign to the neighborhood.