Shelley Morrison (born October 26, 1936 in New York City) is an American actress.

Born Rachel Mitriani and sometimes credited early in her career as Rachel Dominguez, Morrison has been a stage and television actress since the early 1960s. She was a regular performer on the sitcom The Flying Nun playing "Sister Sixto", and she continued in television guest roles until securing a recurring role in the soap opera General Hospital in 1982.

Her most widely recognisable recent role has been as the Salvadoran maid Rosario Salazar in the NBC comedy television series Will & Grace. The role was originally created for a brief one episode appearance, but was so popular with viewers, that the character became a regular. In addition to sparring with her employer Karen Walker, played by Megan Mullally, the Rosario storyline has also allowed her to marry Jack MacFarland, played by Sean Hayes in a marriage of convenience designed to prevent her impending deportation.

In approximately 25 film appearances and 35 television appearances, Morrison has portrayed a maid or housekeeper on 32 separate occasions (including in "Columbo" and the film "Troop Beverly Hills.") Morrison had just recently informed her agent not to offer her any more "maid parts" when the call for "Will & Grace" came in.

Morrison has revealed that she was diagnosed with cancer in recent years, but that she is now in remission.