Bernadette Peters (born February 28, 1948) is an American actress, singer, and children's book author. Over a career spanning five decades, she has starred in musical theatre, television and film, performed in solo concerts and released recordings. She is a critically acclaimed Broadway performer, having received seven nominations for Tony Awards, winning two (plus an honorary award), and nine nominations for Drama Desk Awards, winning three. Four of the Broadway cast albums on which she has starred have won Grammy Awards.

Regarded by many as the foremost interpreter of the works of Stephen Sondheim, Peters is particularly noted for her roles on the Broadway stage, including in the musicals Mack and Mabel (1974), Sunday in the Park with George (1984), Song and Dance (1985), Into the Woods (1987), The Goodbye Girl (1993), Annie Get Your Gun (1999), Gypsy (2003), A Little Night Music (2010), Follies (2011), and Hello, Dolly! (2018).