The Boy Girl is a 1917 American silent comedy film directed by Edwin Stevens and starring Violet Mersereau, Sidney Mason and Florida Kingsley.

His will bequeathed his fortune to Jack, to be held in trust, with her two maiden aunts as guardians of the girl, until she shall become of legal age or shall marry.

They decide that she be sent to boarding school, and for a time, in her new surroundings (being now properly dressed in girl's clothes), Jack is contented.

She finds board and lodging with a woman who has, as another paying guest, a girl who has just left a position in the office of Ridgeway and Son.

The secrets of Ridgeway and Son have been "leaking" through the conduct of the chief clerk, who sells to a rival firm the information he cunningly contrives to secure.