Mezue ahịrịokwu na-esonụ: Hem Thon Vitiny (; amụrụ na 7 Septemba 1993 na Phnom Penh, Cambodia) bụ onye na-egwu mmiri na Cambodia. Ọ gbara asọmpi na 2012 Summer Olympics na
50 m freestyle na emecha ya na ọkwa nke 57 na agba nke mbụ. Vitiny agafebeghị ọkara-ikpeazụ.