Patricia McNeil is a Canadian costume designer and production designer. She is a three-time winner of the Canadian Screen Award for Best Costume Design, for the films Nelly, The Great Darkened Days (La grande noirceur) and The Twentieth Century, and a winner of the Canadian Screen Award for Best Art Direction/Production Design for The Great Darkened Days. In addition to designing the costumes, McNeil served as production designer for The Great Darkened Days.