Peggy O'Day (born Genevieve Berte, June 16, 1900 - November 25, 1964) was an American actress, film editor, screenwriter, and stuntwoman active during the 1920s and 1930s.

[2] O'Day moved to Los Angeles in her teens to begin her career as an actress and found work as a Christie bathing beauty.

[3] After appearing in comedies early in her career, she quickly developed a reputation as an accomplished horse rider and pioneering stuntwoman in Westerns.

She was in charge of editing all of MGM's foreign releases during the early 1930s, and became an executive of the studio's international department.

[8] She married Earl Reis, a motion picture sound engineer, in 1934; he died several years later in 1939 from complications related to injuries he sustained in World War I, where he worked as an aviator.