Olivia Munn has revealed her mother has been diagnosed with breast cancer, more than a year after the actress shared her own cancer diagnosis.

Olivia’s mom is Kimberly “Kim” Munn (née Schmid). As the Newsroom alum pointed out in a July 2025 Instagram post, Kim is married to her husband, Sam. Previously, Kim was married to Olivia’s father, Winston, until their divorce when Olivia was 2 years old. Kim remarried a member of the U.S. Air Force, and they divorced when Olivia was 16.

Munn urged others to take the free, online risk assessment that she credits with saving her and her mother's lives.