Subway Sadie is a 1926 American silent comedy-drama film directed by Alfred Santell. Adapted from Mildred Cram's 1925 short story "Sadie of the Desert", the film focuses on a relationship between New York salesgirl Sadie Hermann (Dorothy Mackaill) and subway guard Herb McCarthy (Jack Mulhall), who meet on the subway and become engaged. However, after Sadie receives a promotion, she must choose between her new job and marrying Herb. The cast also includes Charles Murray, Peggy Shaw, Gaston Glass, and Bernard Randall.

The film began production in May 1926. Arthur Edeson served as cinematographer, shooting around Central Park in areas like casinos and nightclubs. Distributed by First National Pictures, the film premiered in New York on September 12, 1926. Many publications wrote positively of the film, praising its acting and Santell's direction. Today, it remains unknown if a print of Subway Sadie has survived.