Family name รุจิโรจน์ไพศาล (รุจิโรจน์ไพศาล 
, Rujirojpaisan, Rujirojpaisarn ) , all over the world, is an extremely rare surname. The family name รุจิโรจน์ไพศาล is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.