Bold is a Mongolian name, and Boldyn is the patronymic of Bold. Notable people with the name include:

Bold Dorjsuren (born 1978), Mongolian singer, producer, and television personality Buyandelgeriin Bold (born 1960), Mongolian wrestler Nomin Bold (born 1982), Mongolian painter Boldbaataryn Bold-Erdene (born 1983), Mongolian cyclist Boldyn Byambadorj (born 1991), Mongolian cross-country skier Boldyn Buman-Uchral (born 1971), Mongolian footballer Boldyn Gankhaich (born 1995), Mongolian judoka

See also Bolad (given name)