A.P Udayabhanu(October 1, 1915 - December 15, 1999) was an Indian freedom fighter,journalist, writer and social activist from the State of Kerala. He was from the famous Alummoottil Channar, an Ezhava, family of Muttom near Haripad of Central Travancore. He was a prominent leader from Indian National Congress worked as its state president as well. He was elected to the Travancore Legislative Assembly twice, in 1944 and 1948, on Indian National Congress ticket. He had worked as chief-editors of many newspapers including Mathrubhumi. He also served as the Chair Person of the World Wide Fund for Nature - Kerala Chapter for a long time. His articles and columns used to appear in many Malayalam periodicals and news papers on a regular basis, mostly commenting on social issues.
He is also well known for his contributions to the Malayalam literature, especially towards the genre of light essays.were simple, touchy and humorous.Enteyum Kathayum Alpam is his auto biography.