Family name ถนอมจันทร์ (ถนอมจันทร์ 
, Thanomjan ) , around the world, is a very rare surname. The surname ถนอมจันทร์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, ถนอมจันทร์ is the forename as well as the last name.