The US Indoors, known formally as the U.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 (excluding 1977).
Marie Wagner won more singles titles (6) and Hazel Hotchkiss Wightman won more doubles titles (10) at this tournament than any other woman. Lois Felix holds the record for runner-ups in singles (4) while Wightman and Norma Taubele Barber hold the record for runner-ups in doubles (5).
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