Sergiu Toma (born 29 January 1987) is a Moldovan-born Emirati judoka. He competed for the United Arab Emirates in the 81 kg category at the 2016 Olympic Games and defeated Takanori Nagase to enter the semi-finals. He lost his semi-final match to Khasan Khalmurzaev, but then beat Matteo Marconcini in the bronze medal match. At the 2008 and 2012 Olympics he competed for Moldova but was eliminated in the early rounds.