Harriet MacGibbon
- Birth Date
- 10/5/1905 - 8/2/1987
- Birth Place
- Chicago, Illinois
- Known For
- Acting

Harriet Elizabeth MacGibbon was an American film, stage and television actress best known for her role as the insufferably snobbish, "blue-blooded Bostonian" Mrs. Margaret Drysdale in the sitcom The Beverly Hillbillies.
