Kelli O'Hara has established herself as one of Broadway's greatest leading ladies. The Tony Award winner, Emmy and Grammy-nominated actress has appeared in eleven Broadway shows for which she has garnered seven Tony Award nominations.

She won the 2015 Tony Award for Best Leading Actress in a Musical, along with Grammy, Drama League and Outer Critics nominations for her portrayal of Anna Leonowens in The King and I. O’Hara’s other Broadway credits include Kiss Me Kate, The Bridges of Madison County, Nice Work if You Can Get It, South Pacific, The Pajama Game, The Light in the Piazza, Sweet Smell of Success, Follies, Dracula and Jekyll & Hyde.

O’Hara received an Emmy Award nomination for her portrayal of Katie Bonner in Topic's hit web series, The Accidental Wolf, and can currently be seen on HBO’s The Gilded Age. Additional film and television credits include Showtime's Master of Sex, 13 Reasons Why, Blue Bloods, All My Children, All the Bright Places, Peter Pan Live!, Sex & The City 2, Martin Scorsese's The Key to Reserva, The Good Fight, N3mbers and Car Talk.

In 2015, she made history as the first artist to make the crossover from Broadway to opera when she made her Metropolitan Opera debut in The Merry Widow opposite Renee Fleming and in 2018 returned as Despina in Così fan tutte. She was last seen at the Metropolitan Opera as Laura Brown in the world premiere of The Hours by Kevin Puts.

O’Hara is a frequent performer on PBS's live telecasts, The Kennedy Center Honors, and performs often alongside the New York Philharmonic and the New York Pops. Along with her two Grammy nominations, her solo albums, Always and Wonder in the World, are available on Ghostlight.

In 2024, O'Hara returns to Broadway in the New York Times ‘Critics Pick’ new musical, Days of Wine and Roses. This production, which garnered rave reviews during its Off-Broadway run at the Atlantic Theatre Company last summer, has been a labor of love for O'Hara and composer Adam Guettel, who dedicated the last 21 years to its development.