Hariharan Anantha Subramani (born 3 April 1955) is an Indian playback, bhajan and ghazal singer who predominantly sings in Tamil, Malayalam, Hindi, Kannada and Telugu languages.

He has also sung over 15,000 notable songs in 10+ languages including Marathi, Sinhala, Maithili, Bhojpuri, Odia, Bengali, Sanskrit, Gujarati and English.

In 1992, Hariharan and late Gulshan Kumar's Hanuman Chalisa recorded under the label of T-Series crossed the 3-billion views mark on YouTube,[3] making it the first devotional song in the world to do so.

[5] His mother Alamelu Mani (born 1935) has had a long career as Carnatic vocalist and a distinguished teacher and was honoured with the title Sangeeta Pracharya in 2019.

Hariharan has been one of the most trusted singers of Rahman and has sung many songs for him in long list of movies that includes Muthu, Minsara Kanavu, Jeans, Indian, Mudhalvan, Taal, Rangeela, Indira, Iruvar, Anbe Aaruyire, Kangalal Kaithu Sei, Sivaji, Alaipayuthey, Kannathil Muthamittal, Guru, Enthiran etc.

[citation needed] He also performed the Swagatham song in the 2010 Commonwealth Games opening ceremony held in New Delhi on 3 October.

[21] During 2010–2011, he appeared in a music show in Jaya TV named Hariyudan Naan which was aired every Thursday, Friday and Saturday.

[22] Hariharan collaborated with Sarangan Sriranganathan for "Sruthi" at the Sydney Hill Centre and the Melbourne Robert Blackwood Hall Australia in 2011.

[23] He unofficially released ghazal singer Adithya Srinivasan's first international single 'Gham e Duniya' at the Gateway Hotel, Bangalore.

[24] In an interview in 2012, he said that he was no longer receiving offers to sing for Bollywood as music composers wanted to experiment with singers from the younger generation.

Albums by Colonial Cousins Hariharan has debuted as an actor in the Malayalam movie Dhaya Bharati released on 25 October 2024.