Last name กฤษณวงศ์ (กฤษณวงศ์ 
, Kritsanawong ) , throughout the world, is an extremely rare surname. The family name กฤษณวงศ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, กฤษณวงศ์ is the forename as well as the last name.