P. Kesava Pillai (20 July 1904 – 1 July 1983), better known by his pen-name P. Kesavadev, was a novelist and social reformer of Kerala, India. He is remembered for his speeches, autobiographies, novels, dramas, short stories, and films. Odayil Ninnu, Nadhi, Bhrandalayam, Ayalkar (Central Academi Award-winning novel), Ethirppu (autobiography) and Oru Sundariyude Athmakadha are some among his 128 literary works. Kesavadev along with Thakazhi Sivasankara Pillai and Vaikom Muhammad Basheer are considered the exponents of progressive Malayalam Literature.