Kelli Christine O'Hara is an American actress and singer, most known for her work on the Broadway and opera stages.
An eight-time Tony Award nominee, O'Hara won the 2015 Tony Award for Best Actress in a Musical for her performance as Anna Leonowens in the Lincoln Center Theater revival of The King and I. She also received Tony nominations for her performances in The Light in the Piazza, The Pajama Game, South Pacific, Nice Work If You Can Get It, The Bridges of Madison County, Kiss Me, Kate, and Days of Wine and Roses.
O'Hara received the Drama Desk Award for Outstanding Lead Performance in a Musical in 2024 for Days of Wine and Roses. She was nominated for the Olivier Award for her performance as Anna Leonowens in the West End revival of The King and I.
O'Hara made her debut at The Metropolitan Opera in a 2014 production of Franz Lehár's The Merry Widow. In 2018, she played the role of Despina in the Met Opera's production of Mozart's Cosi fan tutte. In 2022, she returned to the Met, starring as Laura Brown in Kevin Puts' The Hours, a role she and co-stars Renee Fleming and Joyce DiDonato reprised for eight performance in May 2024.