Robert Padnick is an American television writer and actor. He is the son of Castle Rock Entertainment executive Glenn Padnick.
As a child, Padnick appeared in the 1996 episode of Seinfeld episode "The Foundation" as one of the children in Kramer's karate class. Footage of Padnick's bar mitzvah was included as a bonus feature on the Seinfeld DVD containing the episode. In 2011, he wrote an episode for the American version of The Office, for the seventh season, entitled "PDA", which resulted in a nomination for the Writers Guild of America Award for Best Screenplay – Episodic Comedy.