Wendy Jane Crewson (born May 9, 1956) is a Canadian actress and producer. She began her career appearing on the Canadian television, before her breakthrough role in 1991 dramatic film The Doctor.

Crewson has appeared in many Hollywood films, including The Good Son (1993), The Santa Clause (1994) and its sequels The Santa Clause 2 (2002) and The Santa Clause 3: The Escape Clause (2006), as well as Air Force One (1997), Bicentennial Man (1999), What Lies Beneath (2000), The 6th Day (2000), and Eight Below (2006). She also starred in a number of independent movies, such as Better Than Chocolate (1999), Suddenly Naked (2001), Perfect Pie (2002), Away from Her (2006) and Room (2015).

Crewson has won six Gemini Awards and two Canadian Screen Awards for her performances on television. She played leading roles in a number of television films, include playing Joanne Kilbourn in six movies based on novels by Gail Bowen. She had a recurring roles on American television series 24 and Revenge, and from 2012 to 2017 co-starred in the CTV medical drama Saving Hope.