Joan Cusack (gebore 11 Oktober 1962) is 'n Amerikaanse aktrise en skryfster. Sy is bekend vir haar rolle in die rolprente Working Girl (1988), In & Out (1997), Grosse Pointe Blank (1997), en The Perks of Being a Wallflower (2012). Sy is die suster van die aktrise Ann Cusack en die akteur John Cusack. 1987: The Allnighter 1988: Working Girl 1990: Men Donot Leave 1990: My Blue Heaven 1990: Arrive Alive 1991: The Cabinet of Dr. Ramirez 1992: Hero 1992: Toys 1993: Addams Family Values 1995: Nine Months 1996: Mr. Wrong 1997: In & Out 1997: Grosse Pointe Blank 1997: A Smile Like Yours 1999: Toy Story 2 1999: Arlington Road 1999: Cradle Will Rock 1999: Runaway Bride 2003: School of Rock 2004: Raising Helen 2005: Chicken Little 2005: Ice Princess 2006: Friends with Money 2008: Kit Kittredge: An American Girl 2008: War, Inc. 2009: Confessions of a Shopaholic 2009: Toys in the Attic 2010: Toy Story 3 2011: Hoodwinked Too!