Florence A. Ballin (1887-1975) was a tennis player from the U.S. She played in the mixed doubles in the early 1900s.

In 1915 Ballin reached the doubles final at the US Indoor Championships, playing with Molla Bjursted.

Ballin reached the final of the mixed doubles competition at the U.S. National Championships on three occasions (1916, 1917, 1919).

[1] Each time she partnered with multiple champion Bill Tilden but they lost all three finals.

[4] She won the women's lawn tennis championship of Pennsylvania and Eastern States in 1922 defeating Anne Townsend in straight sets.