Antonia "Toni" Collette (born 1 November 1972) is an Australian actress and musician, known for her acting work on stage (stage actor), television and film (film actor) as well as a secondary career as the lead singer of the band Toni Collette & the Finish.

Collettes acting career began in the early 1990s with comedic roles in films such as Spotswood (Spotswood (film)) (1992) and Muriels Wedding (1994), for which she was nominated for a Golden Globe Award for Best Actress. Following her performances in Emma (Emma (1996 film)) (1996) and The Boys (The Boys (1998 film)) (1998), Colette achieved international recognition as a result of her Academy Award-nominated portrayal of Lynn Sear in The Sixth Sense (1999). She has appeared in thriller (Thriller (genre))s such as Shaft (Shaft (2000 film)) (2000) and Changing Lanes (2001) and independent comedy films like About a Boy (About a Boy (film)) (2002), In Her Shoes (In Her Shoes (2005 film)) (2005) and Little Miss Sunshine (2006).

In 2009, she began playing the lead role in the television series United States of Tara for which she won a Primetime Emmy Award and a Golden Globe Award for Best Actress - Television Series Musical or Comedy in 2010.