Rachel Anne McAdams (born November 17, 1978) is a Canadian actress. A graduate of York University in 2001 with a BFA in theatre, she is known for her starring roles in comedy and drama films as well as her work in television and theater. Her accolades include nominations for an Academy Award, a British Academy Film Award, and a Tony Award. In 2026, she was honored with a star on the Hollywood Walk of Fame. As a leading actress, her films have grossed over $3.4 billion worldwide.

McAdams made her Hollywood film debut in the comedy The Hot Chick in 2002. She rose to fame in 2004 with her portrayal of Regina George in the comedy Mean Girls and with the romantic drama The Notebook. In 2005, she starred in the romantic comedy Wedding Crashers, the psychological thriller Red Eye, and the comedy-drama The Family Stone. She was hailed by the media as Hollywood's new "it girl", and received a nomination for the BAFTA Rising Star Award.