The Wolf of Wall Street star headed to both the Governors Ball and the Vanity Fair afterparty once the ceremony at the Dolby Theatre had finished, but decided to head to Ago "where everyone could get in" so he could celebrate with all his friends.
An onlooker told the New York Post newspaper's Page Six column: "Leo was with all his boys. It was a lot of dudes."
The actor was joined by Lukas Haas, Tobey Maguire, Chuck Pacheco, Vincent Laresca, The Revenant producer Arnon Milchan, and club boss Richie Akiva, as well as his mother Irmelin Indenbirken, dad George, and step mum Peggy DiCaprio, and the group seemed to enjoy inspecting his award.
The source said: "A couple of the guys kept standing on the couch and lifting the Oscar and passing it around."
They were also heard howling and chanting "Wolf pack, wolf pack, wolf pack."
- Bang! Showbiz