Marceline Day (born Marceline Newlin; April 24, 1908 – February 16, 2000) was an American actress who achieved stardom in the mid 1920s, appearing opposite diverse stars such as Harry Langdon, John Barrymore, Ramon Novarro, Lon Chaney, and Buster Keaton. Her career began as a child in the 1910s until it faltered in the early 1930s and she soon retired.