Sara Arjun (born 18 June 2005) is an Indian actress who primarily appears in Tamil and Hindi films. The daughter of actor Raj Arjun, she appeared in several television commercials, including advertisements for Clinic Plus, and a short Hindi film before the age of six. She gained recognition for her performance in A. L. Vijay's Tamil drama film Deiva Thirumagal (2011), which received critical and commercial acclaim.

She has since worked in films across multiple languages, including Tamil, Hindi, Telugu and Malayalam, receiving praise for her performances, particularly in Saivam (2014). She gained wider recognition for her role alongside Ranveer Singh in the spy action-thriller films Dhurandhar (2025) and its sequel Dhurandhar: The Revenge (2026). She also appeared in the Telugu-language social drama Euphoria (2026).

Sara Arjun began her career as a child actor, appearing in numerous television commercials, including advertisements for McDonald's. She gained recognition with a Clinic Plus advertisement and was subsequently cast in Deiva Thirumagal (2011), where her performance as Nila received widespread critical acclaim.

She later appeared in the Hindi film Ek Thi Daayan (2013), produced by Ekta Kapoor, and in Tamil films such as Chithirayil Nilachoru and Saivam, the latter earning her further praise.

Sara appeared opposite Ranveer Singh in the spy action-thriller Dhurandhar (2025), directed by Aditya Dhar, and reprised her role in its sequel Dhurandhar: The Revenge (2026), forming part of a two-film franchise. She also featured in the Telugu-language social drama Euphoria (2026).

Her father, Raj Arjun, is an actor who has appeared in films. Her younger brother Suhaan made his acting debut in Dinner, a 2016 short film.