620 Park Avenue is a luxury apartment building on the Upper East Side of Manhattan on Park Avenue between East 65th and 66th Streets.

Carpenter, who also designed 625 Park Avenue across the avenue; and constructed by Starrett Brothers construction in 1924.

It is a 15-story building featuring just 15 units each composed of a full floor.

In recent years, it has become known for its conservative and often exclusionary co-op board and is known to avoid famous or notorious residents.

In the 1999 American film Being John Malkovich, 620 Park Avenue is featured as the home of John Malkovich.