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The 1976 Phoenix Cup, also known as the Atlanta WCT, was a men's tennis tournament played on indoor carpet courts at the Omni Coliseum in Atlanta, Georgia in the United States that was part of the 1976 World Championship Tennis circuit. It was the fifth and last edition of the tournament and was held from January 14 through January 19, 1976. Second-seeded Ilie Năstase won the singles title and the accompanying $17,000 first-prize money.