Worldwide, Ruamtham (Ruamtham 
) is an extremely rare unknown gender forename. Much more frequently, Ruamtham is the last name as well as the forename.
Sata, Jaruwan, Jintana, Jiranan, Thavorn, Thitima, Tuspong, Wansiri, Salinlada, Supranee, Suprapha, Sutharat, Sutsawat, Kanokrat, Khamplaeng, Khwanjai, Pornphen, Pichittra, Pipatpron, Phatteera, Phakamas, Phawinee, Lumduan, Panuwat, Paritra, Kwanjai, Saman, Sumet, Srvas, Srves, Pikul, Lamai, Janya, Nukan, Marisa, Mintra, Rapeepat, Suphab, Chairj, Banyen, Pradub, Oranuch, Supakid, Sudarat, Charoon, Bunkong, Butsaba, Keerata, Sommai, and Denduang