Sonia Agarwal (born 28 March 1982) is an Indian film actress known for her works predominantly in Tamil cinema and a few Telugu films. She is best known for her performances in super-hit films such as Kaadhal Kondein (2003), 7G Rainbow Colony (2004) and Pudhupettai (2006) directed by Selvaraghavan.
Featuring her brother-in-law Dhanush, the film became a huge success and she was widely appreciated for her performance as Divya in the film, which brought her into the limelight and fetched her several awards, including the ITFA Best New Actress Award. She acted alongside actors Silambarasan and Vijay in the films Kovil and Madhurey, respectively. After appearing in the films Oru Kalluriyin Kathai and Oru Naal Oru Kanavu in 2005, both of which failing to perform at the box office, she got roles in the films Thiruttu Payale and Pudhupettai. The former, directed by Susi Ganesan, became a highly successful film, whilst the latter, another Selvaraghavan film, received universal critical acclaim.