- Underground Saints -- Undermathic
- Undermind -- Undertheigloo
- UnderThreat -- Undes! ded
- Undeserving -- Unearth
- Unearth -- Unfair?
- Unfair Fight -- Ungdomskullen
- Unge Frustrete Menn -- Uni-V
- Uni V Sol -- Unidade Rap
- Unidades -- Uniform
- Uniform -- Union
- Union 69 -- Union Rhythm Kings
- Union San Luisera -- Unique
- Unique -- Unique Authority