Courtney Alice Shayne is a fictional character who appears in the 1999 film Jawbreaker, portrayed by Rose McGowan.

Courtney Shayne is the manipulative, self-entitled, cruel and vindictive leader of an all-female quartet in Reagan High School.

"[1] Kathleen Sweeney suggests that 1999 "gave viewers two manipulative dark-haired Queen Bees": Kathryn Merteuil (Sarah Michelle Gellar) in Cruel Intentions and Courtney Shayne in Jawbreaker.

Liz Hersey suggests that although Jawbreaker was panned, it would "go on to become a cult classic, thanks in large part to Courtney Shayne.

"[3] Anne Cohen notes that "20 years after the film’s release, Courtney Shayne continues to enjoy hero status among a generation for whom Jawbreaker was a preliminary introduction to the “Mean Girl” archetype."