Hariharan (born 3 April 1955 in Thiruvananthapuram, Kerala, India) is an Indian playback singer who has sung for Malayalam, Tamil, Hindi, Kannada, Marathi, Bhojpuri and Telugu films, an established ghazal singer, and one of the pioneers of Indian fusion music. His melody is strongly appreciated by the film fraternity. In 2004, he was honoured with the Padma Shri by the Government of India and is a two-time National Award winner.
Hariharan, associating with Leslie Lewis, formed Colonial Cousins, a two-member band. They have cut many private music albums and also scored music for few feature films in Tamil cinema and Bollywood cinema.

A. Hariharan, Hari, Hari Haran, HariHaran, ஹரிஹரன்