1998 US Open – Women's singles

Lindsay Davenport defeated defending champion Martina Hingis in the final, 6–3, 7–5 to win the women's singles tennis title at the 1998 US Open. It was her first major singles title. Davenport did not lose a set during the tournament. The final was a rematch of the previous year's semifinal.

This marked the final US Open appearance of former world No. 1 and five-time champion Steffi Graf; she lost to Patty Schnyder in the fourth round. It was also the first US Open appearance for future world No. 1 and six-time champion Serena Williams; she was defeated by Irina Spîrlea in the third round.