Rosita Marstini (September 19, 1887 – April 24, 1948) was a French dancer, stage personality, and silent and sound film actress from Nancy, France.

She began making movies for Universal Pictures in 1913 with her first feature being Herbert Blaché's A Prisoner in the Harem, sharing the limelight with her husband (known in the United States as Paul Bourgeois).

Rosita Marstini's first talking film was Hot for Paris (1929) by Raoul Walsh, with Victor McLaglen and Fifi D'Orsay.

Then she contributed again to nine American films, one of her last being Holiday in Mexico (1946) by George Sidney, with Walter Pidgeon and José Iturbi.

Marstini died on April 24, 1948, in Los Angeles, California at the age of 60, days after the release of her final film Casbah.