Not My Sister is a 1916 silent film drama directed by Charles Giblyn and starring Bessie Barriscale and William Desmond.

It was produced by Thomas H. Ince for Kay-Bee Pictures and distributed by Triangle Film Corporation in Culver City, California.

[1][2][3] With no prints of Not My Sister located in any film archives, it is considered a lost film.

[5] The film is included among the National Film Preservation Board's list of "7,200 Lost U.S. Silent Feature Films" as of October 2019.

This 1910s drama film-related article is a stub.