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.

There’s something about watching a loved one go through it that is even more heartbreaking,” the “Newsroom” alum admitted via Instagram.

July 10 (UPI) -- Breast cancer survivor Olivia Munn says her mother Kim is battling the same disease. "My mother was diagnosed with breast cancer," the Newsroom and Your Friends and Neighbors actress, 45, wrote on Instagram Wednesday.