Raadhika Sarathkumar is an Indian actress, entrepreneur, producer and politician who works predominantly in Tamil and Telugu cinema, TV serials and web series as well as Malayalam, Hindi and Kannada films. She is the Founder and Chairperson of Radaan Mediaworks India Limited. She is the recipient of six Filmfare Awards South, two Nandi Awards and three Tamil Nadu State Film Awards.

Personal life
Raadhika is the daughter of the late Tamil film actor and comedian, M. R. Radha who hailed from Tamil Nadu and Geetha who is a Sri Lankan. Raadhika did her education in India, Sri Lanka and the United Kingdom. She has a younger sister Nirosha, who is also an actress, and two younger brothers, Raju and Mohan. She also has an older half-brother Radha Ravi.

Raadhika married actor Sarathkumar on 4 February 2001. They had been friends before their marriage and had been paired in two films: Namma Annachi (1994) and Suryavamsam (1997). The couple has a son named Rahhul born in 2004.

Her daughter Rayane Hardy married cricketer Abhimanyu Mithun in 2016. Raadhika became a grandmother in 2018 when Rayane had a son.