N3RD Street (also N3rd Street, N3RD St) is a nickname for a segment of North 3rd Street in Philadelphia, between Market Street and Girard Avenue (spanning across the neighborhoods of Old City and Northern Liberties), and its surrounding community that is home to a concentration of "nerdy" companies and spaces; "N3RD" is a double entendre as both leet for "nerd" and reflecting the "N. 3rd St." of postal addresses. The official city naming ceremony took place on April 11, 2014, at Liberty Lands Park.