Nicole Margaret "Nikki" Blonsky (born November 9, 1988) is an American actress, singer, and dancer who is best known for her role as Tracy Turnblad in the 2007 film, Hairspray and as Maggie Baker in the 2008 film, Queen Sized.

Her only Disney work was for portraying as Willamena Rader in the ABC Family TV show, Huge and Teri O'Shaughnessy in the ABC TV show Ugly Betty.