Devayani Rajakumaran (née Jayadev; born 22 June 1974) is an Indian actress known for her works primarily in Tamil films.

[1] Devayani was born on 22 June 1974[2] in Mumbai, Maharashtra to a Konkani father from Mangalore and a Malayali mother.

[8][9] Devayani began her career in the Hindi film Koyal, which was later cancelled during its production stage.

[14] She was a part of several successful films, including Surya Vamsam (1997), Marumalarchi (1998), Ninaithen Vandhai (1998), Nee Varuvai Ena (1999), Bharathi (2000), Thenali (2000), Friends (2001), Aanandham (2001) and Azhagi (2002).

[15] Devayani over the years played powerful female characters until 2001 when she fell in love with Rajakumaran who directed her Vinnukum Mannukum.

She has produced a few films that her husband directs, a notable one being Thirumathi Thamizh (2013) where she played an important role.