2021 US Open – Women's singles final

The 2021 US Open Women's Singles final was the championship tennis match of the women's singles tournament at the 2021 US Open, contested by two unseeded players, qualifier Emma Raducanu and 73rd-ranked Leylah Fernandez. The match was notable for being the first time that a qualifier had ever advanced to the final of a major, for being the first all-teenage major final since the 1999 US Open, and for being the first major final where both finalists were born in the 21st century. Fernandez had defeated four players ranked in the top 20 (three of whom were in the top five) to reach the final: Naomi Osaka (also the defending champion), Angelique Kerber, Elina Svitolina, and Aryna Sabalenka. Meanwhile, Raducanu beat two seeds, 11th seed and Tokyo 2020 gold medallist Belinda Bencic, and 17th seed Maria Sakkari, and had advanced through all her matches, including qualifiers, without dropping a set.