Josephine Dunn (May 1, 1906-February 3, 1983) was an early American film actress of the 1920s and 1930s.
Born in New York City, Dunn began her career in Hollywood with a small role alongside Thelma Todd in the 1920 film Fascinating Youth. Dunn became associated with what would become known as the "Algonquin Round Table", which included notorious and famous actress Tallulah Bankhead. She married Clyde Greathouse during the mid-1920s, divorcing him shortly thereafter. In 1925 she married William P. Cameron, whom she also divorced in 1928.
She would star in a total of twenty three silent films, and in 1929 she was one of thirteen girls named as "WAMPAS Baby Stars", which that year included actress Jean Arthur. In 1930 she made a successful transition, unlike many silent stars, to sound films. In 1930 she starred in Safety in Numbers alongside Carole Lombard and Kathryn Crawford. She starred in sixteen films through 1932, and at the peak of her career in 1933 she married Eugene J. Lewis, whom she divorced in 1935 to marry Carroll Case, whose father Frank Case owned the Algonquin Hotel in New York City, which housed the now famous "Algonquin Round Table". She retired from acting in 1938, and remained with Case for the remainder of his life.