Marimuthu Yoganathan popular as The Tree Man (born 1969) is an Indian environmental activist.
He is working as Tamil Nadu State Transport Corporation Coimbatore Bus Conductor.
When he was young he used to write poems sitting under trees in Kotagiri forests.
He works as a bus conductor with Tamil Nadu govt on S-26, runs on the Marudamalai-Gandhipuram route in Coimbatore.
He works with school children and college students in creating the hazards of felling trees.