Ellen Travolta (born October 6, 1940) is an American actress, the eldest sibling of John Travolta. She is known for her portrayal of Louisa Arcola Delvecchio, the mother of Chachi Arcola (Scott Baio) in the 1950s-based sitcom, Happy Days, and its spin-off, Joanie Loves Chachi. She also played mother to Baio on Charles in Charge from 1987 to 1990.

She appeared as Lillian, Charles's mother, in the opening sequence of Charles in Charge with her castmates in "New Kidney in Town".