Joan Marsh (July 10, 1913 – August 10, 2000), born Nancy Ann Rosher, and briefly known as Dorothy D. Rosher, was an American film actress. Her father was Charles Rosher, an award-winning cinematographer. She was a child actress before becoming an adult thespian. Joan Marsh made her first film appearances as an infant in 1915. She appeared in the short film The Mad Maid of the Forest (1915) and also the Universal Pictures film Hearts Aflame (1915), billed as Dorothy Rosher. After a number of baby roles, Marsh became a child star in Mary Pickford films such as Daddy-Long-Legs (1919) and Pollyanna (1920). She made her last film appearance as a child in 1921, and returned to films with a role in King of Jazz (1930), in which she sang with Bing Crosby. She played W. C. Fields’ daughter in You’re Telling Me! (1934). She continued in small roles until the early 1940s. During production of Charlie Chan on Broadway (1937), Marsh met and later married writer Charles Belden, who had co-written the film’s screenplay. The marriage ended in divorce in 1943, and the following year Marsh made her final film appearance in Follow the Leader (1944). Joan Marsh later managed a stationery shop, and died in Ojai, California in 2000.