- Gender: Female
- Birthday: 1874-03-14
- Day of Death: 1973-06-24 ( 99 years old )
- Place of Birth: Germantown, Pennsylvania, USA
- Also Known As: Mary K. Carr / Mary Kennavan Carr / Mary Kennevan Carr / Mary Kennevean Carr / Mrs. William Carr / Mary Kennavan / Mary Kennevean
Mary Carr (14 March 1874 – 24 June 1973) was an American film actress and was married to the actor William Carr (1866–1937). She appeared in 144 films between 1915 and 1956.