Family name Manassanun (Manassanun 
) , across the world, is an extremely rare surname. Much more frequently, Manassanun is the forename as well as the last name.
Rodma, Aramsaengtian, Korsoongnern, Pattasethsakda, Phongphun, Densuntikul, Doungpitak, Saksrichayakorn, Sripiyanop, Chotivanich, Phayakkhin, Leerasetthakorn, Liamthaisong, Nitiruksakul, Wattanakreangkrai, Chaiprasert, Pittayanurak, Srithongkaew, Unsworth, Lertvanichkijkun, Noksakul, Tanwongwan, Laopa, Javoh, Mahima, Sukjam, Pimpuang, Mankong, Atichon, Boonsuk, Piticomporn, Jamsrikaew, Thatana, Osotchan, Suriwong, Chuenjai, Ketsakorn, Khaokham, Pongnorrawit, Napasang, and Thanaphatpichai