UDG may refer to:

Universities University of Girona (UdG; ), in Girona, Spain University of Granma (UdG; ), in Bayamo, Cuba University of Guadalajara (UdeG; ), in Jalisco, Mexico University of Donja Gorica (UDG), in Podgorica, Montenegro

Science Uracil-DNA glycosylase (UDG), an enzyme Ultra diffuse galaxy (UDG), an extremely low luminosity galaxy

Other uses UDG Healthcare, an Irish healthcare support company Muduga language, ISO 639-3 language code udg Udege language Darlington County Airport, South Carolina, US, FAA airport code UDG UTMC Development Group, a transport standards organisations in UK Urban Design Group, an American architectural design company Danganronpa Another Episode: Ultra Despair Girls, a 2014 video game User-defined graphic (in early computer character sets)

See also

UG (disambiguation) Goris Airport, ICAO airport code UDGS, an airport in Armenia