UCG may refer to:
Universities Universidade Católica de Goiás, a Catholic university in Brazil University College, Galway, a National University of Ireland University of Montenegro ()
Other uses Serine, a proteinogenic amino acid, specified by redundant codons in the genetic code that include UCG UCG or United Communications Group, a privately held company, owner of GasBuddy Underground coal gasification, a process carried on in non-mined coal seams United Church of God, a Christian denomination Urban contemporary gospel, a modern subgenre of gospel music.
See also UGC (disambiguation)