Christine Ebersole (b. 21 February 1953) is a two-time Tony Award-winning American actress and singer.

Born in Winnetka, Illinois, she attended New Trier High School and graduated from MacMurray College in Jacksonville, Illinois. After appearances on Ryan's Hope in 1977 and 1980, she got her first big role as part of the cast of Saturday Night Live during Dick Ebersol's (no relation) first full season as executive producer (season seven; 1981-1982) where she was a Weekend Update co-anchor for Brian Doyle-Murray (sometimes switching places with fellow castmember Mary Gross), and after this starred for several seasons on One Life to Live and Valerie.

Her film roles to date have included Mac and Me (1988), My Girl 2 (1994), Richie Rich (1994), 'Til There Was You (1997), My Favorite Martian (1999), and as the diva Katerina Cavalieri in Miloš Forman's Amadeus (1984).

Ebersole has also been part of the cast of several failed television series, including Rachel Gunn, R.N. (1992) in which she played the title role, alongside Will & Grace's Megan Mullally. She has also had notable guest roles in shows such as Will & Grace, The Nanny, Just Shoot Me, Murphy Brown and Ally McBeal.

Ebersole has found her biggest fame on Broadway. Her most noted roles have included an appearance in Gore Vidal's The Best Man (2000), Millicent Jordan in Dinner at Eight (2002) (for which she was nominated for a Tony Award), M'Lynn in Steel Magnolias (2005), and the role for which she won the Tony Award for Best Leading Actress in a Musical - Dorothy Brock in the 2001 revival of 42nd Street.

In 2006, Ebersole took the dual role of Edith Ewing Bouvier Beale ("Big Edie") and Edith Bouvier Beale ("Little Edie") in Grey Gardens, a new musical based upon the movie of the same name. After a sold-out off-broadway run, Ebersole remained with the roles when the play moved to Broadway in fall 2006. For this role, she has received rave reviews. She also earned her second Tony Award for Best Leading Actress in a Musical for this role.

Ebersole has been married twice, to Peter Bergman, and to her present spouse Bill Moloney, with whom she has adopted three children. She is also the aunt of Janel Moloney. She currently lives in Maplewood, New Jersey with her family.

Ms. Ebersole won the 2007 Tony Award for Best Actress in a Musical for her work in "Grey Gardens". Previously, she was awarded the Drama Desk Award, the Outer Critics Circle Award, the Drama League awarded her both a citation and the Outstanding Performance of the Year, and she was named to its dais for 2007. She also received a special citation from the New York Drama Critics' Circle and the Obie for her off-Broadway turn in "Grey Gardens".