Kelley Mack (কেলি ম্যাক) was an American actress. She was best known for playing Addy in season 9 of the series The Walking Dead (2018–2019). She also has roles in the films Profile (2018) and Broadcast Signal Intrusion (2021).

Mack had two younger siblings, including actor Parker Mack. Mack died in Cincinnati on August 2, 2025, at the age of 33 from CNS glioma.