Susan Clark (born March 8, 1940) is a Canadian actress, possibly best known for her role as Katherine on the American television sitcom Webster, on which she appeared with her husband, Alex Karras.

Clark was born Nora Golding in Sarnia, Ontario, the daughter of Eleanor Almond (née McNaughton) and George Raymond Golding. Clark grew up in Toronto, Ontario, where she attended Northern Secondary School. She was one of several successful entertainers and many notable persons to have attended this school. She is married to her Webster co-star Alex Karras, and the two have a daughter named Katie (b. 1980). They met when they costarred in the TV movie, Babe, in which she played Babe Didrikson Zaharias, and he played her husband, professional wrestler George Zaharias.

Clark had leading roles in several films, including Coogan's Bluff with Clint Eastwood in 1968, Tell Them Willie Boy Is Here with Robert Redford in 1969, Valdez Is Coming with Burt Lancaster in 1971, Night Moves with Gene Hackman in 1975, the disaster film Airport 1975, and another disaster film City on Fire with Barry Newman, Leslie Nielsen and Shelley Winters. In 1976, Clark starred in a three-hour made-for-television movie biography of the aviatrix Amelia Earhart, and her marriage to noted publisher G.P. Putnam, for which she received an Emmy nomination for Best Actress.