Leonard Tupamahu (born 9 July 1983 in Jakarta, Indonesia) is an Indonesian professional football coach and former player who is currently the head coach at Persiba Balikpapan. During his playing career, he primarily played as a defender.
He has played for Persija from 2004 until 2009. In 2009, he also played futsal for Biangbola in Indonesian Futsal League. In 2010, he joined Arema Malang. On 12 December 2014, he joined Barito Putera.