Cognomen วัชรนามสวัสดิ์ (วัชรนามสวัสดิ์ 
, Wadcharanamsawat, Vatcharanamswad) , all around the world, is an extremely rare surname. The last name วัชรนามสวัสดิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.