The Whitney Avenue Historic District is a historic district in the East Rock neighborhood of New Haven, Connecticut. It is a 203-acre (82 ha) district which included 1,084 contributing buildings when it was listed on the National Register of Historic Places in 1989.

East Rock is a neighborhood in the city of New Haven, Connecticut, named for nearby East Rock, a prominent trap rock ridge. The area is home to a large group of Yale students, staff, and faculty, as well as many young professionals and families. Writing in the Times Literary Supplement, Hirsh Sawhney describes East Rock as a "yuppie enclave", which is "increasingly composed of wealthy professionals and graduate students, most of whom are affiliated with Yale University, whose lavish campus lies just over a mile away" East Rock is also a popular destination for cyclists, as a city bike lane runs along Orange Street, the neighborhood's spine. East Rock is the safest neighborhood in New Haven County. East Rock is home to East Rock Park, which is frequently visited by families and tourists.