Park Ji-ah (; born 18 July 1977) is a South Korean actress. She is known for her roles in dramas such as ', Our Blues and Once Upon a Small Town.
Park Ji-ah started her career in 1998 in theatre plays. She has performed in stage plays and musicals such as Blood and Seed, Daughters of Igalia, Elephant Song, Mokship, and Build Simcheongjeon.
In 2021, she signed with Jannabi Entertainment and worked in her first drama Beyond Evil. The following year she had a supporting role in drama Our Blues, portraying the role of Hye-ja, a woman who takes care of her autistic granddaughter. The role was very well-received. Park Ji-ah said that she learned the Jeju dialect used in the role of a local haenyeo, and that many asked her if she was from Jeju. Later, she played the role of Park Seon-hwa in '.