Keerthi Pandian is an Indian actress who predominantly works in Tamil films. After a brief career as a dancer and theatre actress, she made her film acting debut in 2019 with Thumbaa. She then garnered critical acclaim for her performance in the survival thriller film Anbirkiniyal directed by Gokul. She is also the daughter of actor and politician Arun Pandian and the cousin of actress Ramya Pandian.

Keerthi Pandian was born on 18 February 1992 in Chennai, Tamil Nadu to actor and politician Arun Pandian, and his wife Vijaya Pandian. She has two elder sisters named Kavitha Pandian and Kirana Pandian and a cousin Ramya Pandian, who is also an actress. Keerthi did her schooling at Chettinad Vidyashram in Chennai where she also graduated from.

Pandian's niece Driya portrayed the younger version of her character in Anbirkiniyal. In early 2020 during the first COVID-19 lockdown in India period, Pandian developed an interest in farming and helping crops grow for better produce in the future in her gated property. She also knows fire eating.