The 1977 Virginia Slims Championships were the sixth season-ending WTA Tour Championships, the annual tennis tournament for the best female tennis players in singles on the 1977 WTA Tour. The singles event consisted of two round robin groups (Gold and Orange) of four players each. The winners of each group played each other in the final and additionally there was a play-off match for third place. The tournament was played on indoor carpet and was held from March 24 to 27 in Madison Square Garden in New York City. First-seeded Chris Evert won the singles event and the accompanying $50,000 first prize money.