Farrow was born in New York City to actress Mia Farrow and filmmaker Woody Allen. His father's family is Jewish, whereas his mother's family is Catholic. His given name honors National Baseball Hall of Fame pitcher Satchel Paige and actress Maureen O'Sullivan, his maternal grandmother. Now known as Ronan, he was given the surname "Farrow" to avoid a family with one child named Allen amid Farrows and Previns. In 2013, Mia Farrow raised speculation that singer-actor Frank Sinatra could have been Ronan's biological father.