This article is about the township in New Jersey. For the suburb in Melbourne, Victoria see Brunswick East, Victoria.

East Brunswick is a township in Middlesex County, New Jersey, United States. The suburban community is part of the New York City metropolitan area and is located on the southern shores of the Raritan River, directly adjacent to the city of New Brunswick. According to the 2010 United States Census, the township's population was 47,512, reflecting an increase of 756 (+1.6%) from the 46,756 counted in the 2000 Census, which had in turn increased by 3,208 (+7.4%) from the 43,548 counted in the 1990 Census.