Olga Grey (born Anushka Zacsek[1][2] or Anna Zacsek, November 10, 1896 – April 25, 1973[3]) was an American silent film actress, sometimes billed with the alternate spelling of her last name, Olga Gray.

Her father wanted her to become a violinist, so she studied music while harboring dreams of being an actress.

She would have twelve film roles that year, including a role (as the actress Laura Keene) in the now classic and controversial film The Birth of a Nation, starring Lillian Gish, Mae Marsh, and directed by D. W. Griffith.

[8] In 1942 she was one of the defense attorneys in the "Sleepy Lagoon" trials, defending gang members Henry Leyvas, Victor Segobia, and Edward Grandpré.

[10] Anna Zacsek was residing in Los Angeles at the time of her death on April 25, 1973, aged 76.