Susan Elaina Morse (born 1952) is an American film editor with more than 30 film credits. She had a notable collaboration with director Woody Allen from 1977 to 1998. Their collaboration led to a nomination for the Academy Award for film Editing for the 1986 film Hannah and Her Sisters, and to five nominations for the BAFTA Award for Best Editing (for Manhattan (1979), Zelig (1983), Hannah and Her Sisters (1986), Radio Days (1987), and Crimes and Misdemeanors (1989)). She was nominated, as well, for an Emmy Award for her editing of the "Daddy's Girlfriend (Part Two)" episode of the popular FX series Louie.
Morse has been elected to membership in the American Cinema Editors and was honored at the 25th Annual Muse Awards Gala for New York Women in film and Television, along with Tina Fey, Julianne Moore and Debra L. Lee, Chairman and CEO of BET Network in 2005.
Morse was one of the first female varsity captains in Yale history and the only junior in that group, in 1972/73, when she co-captained the field hockey team with Lawrie Mifflin, former senior editor at the New York Times. Morse remained the team's solo captain in their 1973/74 season.