Cognomen รุ่งโรจน์รัตนภูมิ (รุ่งโรจน์รัตนภูมิ, Rungojrattanapoom, Runagrojrattanaphum) , all over the world, is a very rare last name. The family name รุ่งโรจน์รัตนภูมิ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.