Defending champion Iga Świątek defeated Karolína Muchová in the final, 6–2, 5–7, 6–4 to win the women's singles tennis title at the 2023 French Open. It was her third French Open title and fourth major title overall. Świątek was the third woman in the Open Era to win her first four major finals, and the youngest to win four majors since Serena Williams in 2002. She was the first player to defend the French Open title since Justine Henin in 2007, and the first to defend any major title since Williams at the 2016 Wimbledon Championships. Świątek retained the world No. 1 singles ranking after Aryna Sabalenka lost in the semifinals.