Sadhu Kochkunju Upadesi (Malayalam: സാധു കൊച്ചുകുഞ്ഞ് ഉപദേശി; 1883 – 30 November 1945) was a famous Malayali Christian preacher, poet and composer. Kochoonju was a very distinctive person in appearance. He always wore a white shirt and white dothi. He was about 175 cm tall and had very thin and frail body. His eyes appeared to be piercing and his forehead was frowned as if brooding yet with a childlike impression. He always carried an umbrella and his Bible wherever he went. His saintly life, self-control, self-denial, and commitment towards social issues made him a unique person. He liked to spend time alone with Bible, to him the Bible was not a book to be read but an instruction book which should be followed in day-to-day life. Much of his time he spent in reading.