K. Madhavan (26 August 1915 – 25 September 2016) was an Indian independence activist and Communist leader from Kerala, India.
He was born on 26 August 1915 in Kanhangad, British India to A.C Raman Nair and Kozhungal Unnanga Amma.
On 20 August 1930, he was arrested and sent to jail on six months' rigorous imprisonment.
When Travancore, Kochi and the Malabar region of congress were joined to form the Kerala Pradesh Congress Committee [KPCC] in 1921 he was the secretary.
His autobiography 'Payaswiniyude Theerangalil' (On the Banks of river Payaswini) is considered a valuable document of a transformative epoch in modern Kerala history.