The 2021 AIG Women's British Open was played from 19 to 22 August in Scotland at Carnoustie Golf Links. It was the 45th Women's British Open, the 21st as a major championship on the LPGA Tour, and the second championship held under a sponsorship agreement with AIG, which has rebranded the championship to remove the word "British" and run as the 2021 AIG Women's Open.