| TKS Elangovan | |
| Birth Date: | 1954 8, df=yes |
| Birth Place: | Thanjavur |
| Term Start: | 30 June 2016 |
| Term End: | 29 June 2022 |
| Constituency: | Tamil Nadu |
| Office2: | Member of Parliament |
| Constituency2: | Chennai North |
| Term2: | 2009-2014 |
| Predecessor2: | C. Kuppusami |
| Successor2: | T. G. Venkatesh Babu |
| Occupation: | Member of Parliament |
| Spouse: | Nalini Elangovan |
| Children: | 2 daughters |
T. K. S. Elangovan (Tamil: தி.கோ.சீ இளங்கோவன்) (born 30 August 1954 in Chennai, Tamil Nadu, India) is an Indian politician. He was elected to the Rajya Sabha, the upper house of Indian Parliament from Tamil Nadu[1] as a member of the Dravida Munnetra Kazhagam.[2] He was earlier elected to the Lok Sabha, the lower house of the Parliament of India from Chennai North.[3] He is also the Organisation Secretary of DMK. He is the son of Late TK Srinivasan also popularly known as Thathuva Medhai TK Srinivasan (Ex Rajya Sabha MP).
He was actively participating in politics since school days. He became the Organisation Secretary of DMK after quitting his job. He was elected Member of Parliament in May 2009.
In June 2016, he was announced as the party's candidate for the Rajya Sabha biennial polls. On 3 June 2016 he was elected unopposed along with R. S. Bharathi.[4]
Elangovan belongs to DMK. His daughter Madhavi is married to actor John Vijay.