Marimuthu is an Indian name. Notable people with the name include:
Given name Marimuthu Bharathan (born 1961), Indian human rights activist Marimuthu Muniandy (born 1971), Malaysian cricketer Marimuthu Palaniswami, Australian computer scientist M. Yoganathan (Marimuthu Yoganathan, born 1969), Indian environmental activist
Surname A. Marimuthu (Aduthurai politician), INC, Tamil Nadu MLA for Aduthurai A. Marimuthu (Vanur MLA), DMK, Tamil Nadu MLA for Vanur A. R. Marimuthu, Indian politician Gomathi Marimuthu (born 1989), Indian track and field sprinter Moo. Marimuthu, Indian politician M. Marimuthu, Indian politician M. Marimuthu (Thanjavur MLA), Indian politician G. Marimuthu (1966–2023), Indian film director and actor