S. Ramesan Nair (3 May 1948 – 18 June 2021) was an Indian lyricist and poet who worked predominantly in the Malayalam film industry.

S. Ramesan Nair was born on 3 May 1948 in a village named Kumarapuram in the present-day Kanyakumari district, in Tamil Nadu, as the son of Shadananan Thampi and Parvathi Amma.

[1] Nair was a playwright, lyricist, translator and commentator of classical Indian literature such as the Tamil works Chalappathikaram and Tirukkuṟaḷ.

He achieved wide appreciations as a poet through works like Sooryahridayam, before starting his accomplished career as film lyricist in 1985 by penning songs for the movie Pathamudayam.

Through his career he went on to write songs for over 170 films working for composers including M. G. Radhakrishnan, Ouseppachan, Berny-Ignatius, Raveendran, Vidyasagar and Shyam.