A. Chellakumar
Constituency: Krishnagiri

Date of Birthday: 12 January 1960
Place of Birth: Nagerkot, Kanyakumari, Tamil Nadu
Political Party: Indian National Congress
Educational Qualifications: M.B.B.S.
Educated at: Tirunelvely Medical College, Tirunelvely, Tamil Nadu
Profession: Social Worker, Businessperson, Educationist, Politician

Marital Status: Married
Date of Marriage: 24 Oct 1996
Spouse's Name: Smt. Rajkumari Devikadevi
No. of Sons: 1
No.of Daughters: 1
Parents: Shri C. Arunachalam, Smt. C. Saraswathy
Permanent Address: 25/12, 8th Cross Street, Shenoy Nagar, Chennai-600040, Tamil Nadu
9444071574 (M)

Dr. A. Chellakumar is an Indian politician and Member of parliament. He was elected to the Tamil Nadu legislative assembly as an Indian National Congress (INC) candidate from Anna Nagar constituency in the 1991 election and as a Tamil Maanila Congress (Moopanar) (TMC) candidate from T. Nagar constituency in the 1996 election. He was unsuccessful in winning the Villivakkam constituency in 2001. and in the 2011 election he attempted once again to gain the T. Nagar seat. His candidacy in 2001 was as a TMC member and in 2011 it was for the INC. He was runner-up on both occasions.

Although he had joined the TMC breakaway group in 1996 when factionalism beset the INC due to a decision to ally with the All Indian Anna Dravida Munnetra Kazhagam (AIADMK) in the state, Chellakumar subsequently fell out with TMC founder G. K. Moopanar. His career then stalled for some years until, seen as a neutral figure with the INC, into which the TMC had re-merged, he was one of three people appointed as a secretary to the Tamil Nadu All India Congress Committee in 2013.

Chellakumar unsuccessfully contested the Krishnagiri Lok Sabha constituency for the INC in the 2014 elections for the Parliament of India, where he finished in a distant fourth place. A major reorganisation of the INC was thought to be necessary following its worst-ever defeat in those elections and as part of that process Chellakumar replaced Digvijaya Singh in April 2017 as the person in charge of the party's affairs in Goa. He was considered at that time to be close to Rahul Gandhi, the son of party president Sonia Gandhi. In the 2019 elections, he contested again from the Krishnagiri constituency and was elected as a member of Parliament.