Margaret Emily Wheeler (born 7 August 1961) is an American actress. She is best known for her role as Janice in the sitcom Friends, where she was a recurring character most notable for being in a relationship with Chandler Bing. She was also a recurring character in Everybody Loves Raymond as Linda, as well as Anita Warrell in the sitcom Ellen.
According to Kathy Griffin's autobiography, Official Book Club Selection, Wheeler was cast in the role of Vicki for the pilot episode of Suddenly Susan and was eventually replaced by Griffin.
Wheeler voiced Trudy Pickering in the 2019 animated film.