Rebel Melanie Elizabeth Wilson (born Melanie Elizabeth Bownds; 2 March 1980) is an Australian actress, writer, comedian and producer. After graduating from the Australian Theatre for Young People in 2003, she began appearing as Toula on the Special Broadcasting Service (SBS) comedy series Pizza and the sketch comedy series The Wedge. In 2008, Wilson wrote, produced and starred in the musical comedy series Bogan Pride. The following year, she won the Tropfest best actress award for her role in Bargain and made a guest appearance in City Homicide. Shortly after moving to the United States, Wilson was cast as Brynn in the feature film Bridesmaids.
Wilson also appeared in A Few Best Men, What to Expect When You're Expecting and Struck by Lightning, leading Variety to name her one of their "Top Ten Comics to Watch for 2011." She also appeared as Becky in Bachelorette and starred in the musical comedy Pitch Perfect film series as Fat Amy, a role that earned her several award nominations and wins, including the MTV Best Breakthrough Performance Award and a Teen Choice Award for Choice Movie Actress. She has also created and starred in Super Fun Night, a television comedy that aired for one season on ABC. In 2019, Wilson starred in Isn't It Romantic, her first lead role. She went on to play a con artist in The Hustle, a female-centred remake of Dirty Rotten Scoundrels, and Jennyanydots in Cats.