Marie Dressler (born Leila Marie Koerber, November 9, 1868 – July 28, 1934) was a Canadian-American stage and screen actress, comedian, and early silent film and Depression-era film star. Successful on stage in vaudeville and comic operas, she was also successful in film.

Leaving home at the age of 14, Dressler built a career on stage in traveling theatre troupes, where she learned to appreciate her talent in making people laugh. In 1892 she started a career on Broadway that lasted into the 1920s, performing comedic roles that allowed her to improvise to get laughs. From one of her successful Broadway roles, she played the titular role in the first full-length screen comedy, Tillie's Punctured Romance (1914), opposite Charlie Chaplin and Mabel Normand. She made several shorts, but mostly worked in New York City on stage. Her career declined in the 1920s.

In 1927, Dressler returned to films at the age of 59 and experienced a remarkable string of successes. She won the Academy Award for Best Actress in 1930–31 for Min and Bill and was named the top film star for 1932 and 1933.

Marie Dressler died of cancer in 1934.