Ngoy is a surname and given name. Notable people with the surname include:
Ngoy Bomboko (born 1975), Congolese football player Charles Lokoli-Ngoy (born 1997), Australian footballer Aimé Ngoy Mukena, Democratic Republic of the Congo politician Eugene Kabongo Ngoy (born 1960), Congolese footballer Francis Dady Ngoy (born 1990), Congolese footballer Julien Ngoy (born 1997), Belgian footballer Kisula Ngoy (1940–2018), Congolese politician and doctor Krom Ngoy (1865–1936), Khmer poet and a master of Kse diev Michaël Ngoy (born 1982), Swiss ice hockey player Narcisse Ngoy (born 2004), French basketball player Nathan Ngoy, (born 2001), Belgian footballer Ted Ngoy (born 1942), Cambodian American owner of doughnut shops in California Trésor Kapuku Ngoy, Congolese businessman, politician and Christian minister Ngoy Nsumbu (born 1972), Congolese football player Ngoy Srin (born 1994), Cambodian footballer
See also Ngoy District, a district (muang) of Luang Prabang province in northern Laos