Rebecca Northan is a Canadian actress, improviser, theatre director, and creative artist. She is known for playing the hippie mother Diane Macleod on the CTV and The Comedy Network sitcom Alice, I Think.

She has been improvising and working as an actor for many years, and in 2004 she was nominated for a Gemini Award for "Best Ensemble in a Comedy" for The Comedy Network’s The Joe Blow Show. Northan is also a five-time Canadian Comedy Award nominee for "Best Female Improviser". She is a graduate of the University of Calgary, and an alumna of the Loose Moose Theatre Company where she did her improv training with Keith Johnstone.