East Williamsburg is a name for the area in the northwestern portion of Brooklyn, New York City, United States. East Williamsburg consists roughly of what was the 3rd District of the Village of Williamsburgh and what is now called the East Williamsburg In-Place Industrial Park (EWIPIP), bounded by the neighborhoods of Northside and Southside Williamsburg to the west, Greenpoint to the north, Bushwick to the south and southeast, and both Maspeth and Ridgewood in Queens to the east. Much of this area is still referred to as either Bushwick, Williamsburg, or Greenpoint with the term East Williamsburg falling out of use since the 1990s.

Williamsburg is a neighborhood in the New York City borough of Brooklyn, bordered by Greenpoint to the north; Bedford–Stuyvesant to the south; Bushwick and East Williamsburg to the east; and the East River to the west. It was an independent city until 1855, when it was annexed by Brooklyn; around that time, the spelling was changed from Williamsburgh to Williamsburg.