Jane Krakowski (née Krajkowski, born October 11, 1968 in Parsippany, New Jersey) is an American actress of Polish descent. Best known for playing Elaine Vassal on the television series Ally McBeal, Krakowski has also appeared in movies such as National Lampoon's Vacation, Fatal Attraction, The Flintstones in Viva Rock Vegas (where she played Betty Rubble), Marci X, Alfie, and Pretty Persuasion.

Krakowski appeared in the 1989 Broadway musical Grand Hotel as the typist and would-be-film-star Flaemmchen. Her solo number "I Want to go to Hollywood" is included on the original cast recording. At the 2000 American Comedy Awards, Krakowski won rave reviews (and the hearts of many red-blooded men) when she performed a sexually charged musical tribute and love letter to Microsoft chairman (and the world's richest man), Bill Gates.

In 2003, she starred in the Broadway revival of Nine for which she won the Tony Award for Best Actress. In 2005 she starred alongside Ewan McGregor in the new production of Guys and Dolls in London, at the Piccadilly Theatre.