Paul Adelstein (born April 29, 1969) is an American actor. He is known for the role of Agent Paul Kellerman in the Fox television series Prison Break and his role as paediatrician Cooper Freedman in the ABC medical drama Private Practice. In addition to supporting roles in films such as Intolerable Cruelty and Memoirs of a Geisha, he is also known for his recurring role as Leo Bergen on ABC's Scandal and as Jake Novak in the Bravo television series Girlfriends' Guide to Divorce. He also played David Sweetzer on the short-lived NBC comedy I Feel Bad.

Adelstein co-created the dark comedy TV series Imposters, which aired on Bravo and ran for two 10-episode seasons from 2017 and 2018; he is credited as a writer on six episodes. He also played the role of Shelley Cohen on that show.