East Boston, commonly referred to by the nickname "Eastie," is a neighborhood located in the city of Boston, Massachusetts, in the United States. It was officially annexed by the city of Boston in 1836. The neighborhood is bordered by the communities of Winthrop, Revere, and Chelsea.
Geographically, East Boston is separated from downtown Boston and the neighborhood of Charlestown by Boston Harbor. Its current boundaries were established during the 1940s through a land fill project that connected five inner harbor islands. This development also incorporated Logan International Airport into the final outline of the area.