Ida Rauh (March 7, 1877 – February 28, 1970) was an American suffragist, actress, sculptor, and poet who helped found the Provincetown Players in 1915.

The players, including Susan Glaspell, George Cram Cook, John Reed, Hutchins Hapgood, Eugene O'Neill, and others, first performed in a structure owned by Mary Heaton Vorse in Provincetown, Massachusetts.

Rauh directed the first production of O'Neill's one-act play Where the Cross Is Made for the opening of the permanent Provincetown Playhouse at 133 Macdougal Street in November 1918, and in the Village she became known for her intensely emotional acting.

[1] In some places, such as Eastman's home town of Elmira, this was considered scandalous, the "first step on a slippery slope that led to feckless wives of loose morals, easy divorce, and free love".

[2] Eastman, who edited the left-wing journals The Masses and The Liberator with the help of his older sister Crystal in the second decade of the 20th century, credited Rauh with introducing him to socialism.

[1] Her collected papers, including poems, television scripts, stage plays, correspondence, and other materials are housed in the American Heritage Center of the University of Wyoming in Laramie.