Katie Anne Noonan (born 2 May 1977) is an Australian singer-songwriter. In addition to a successful solo career encompassing opera, jazz, pop, rock and dance, she sings in the groups george and Elixir; performs with her mother Maggie Noonan; and plays with her band The Captains.

Noonan was the musical director of and performed at the 2018 Commonwealth Games opening and closing ceremonies.