Gurunathan is a surname and a given name. Notable people with the name include:
J. Guru (alias) Gurunathan (1961–2018), aka Kaduvetti Guru, Indian politician K Gurunathan, former Mayor of Kāpiti Coast, New Zealand S. Gurunathan, Indian politician S. K. Gurunathan (1908–1966), Indian sports journalist Gurunathan Muthuswamy (born 1963), Indian weightlifter