Florence A. Ballin (1887-1975) was a tennis player from the U.S. She played in the mixed doubles in the early 1900s. She made it to three US Open finals with Bill Tilden.

The U.S. Women's Indoor Championships, was a national tennis championship for women that was sanctioned by the United States Tennis Association and held 79 times from 1907 through 2001 at various locations and on various surfaces. The event was affiliated with the WTA Tour from 1971 through 2001.