Donna Ganz (born November 9, 1954) is an American former professional tennis player. Ganz started playing tennis at the age of 11, and grew up playing on the clay courts at Flamingo Park in Miami Beach, Florida. Ganz was a two-time Orange Bowl 18 and under champion, having won the titles in 1971 and 1972. She also won the Easter Bowl titles in the girls 18 and under in those same years.