1975 USLTA-IPA Indoor Circuit

The 1975 USLTA-IPA Indoor Circuit  was a professional tennis circuit held in the United States from January until April that year. It was the fifth edition of the circuit and consisted of 13 tournaments. Tennis promotor Bill Riordan organized the circuit and it was sanctioned by the United States Lawn Tennis Association (USLTA). The circuit had a bonus pool of $100,000 for the top eight players.