UK Underground may refer to:

London Underground, the primary metro system in the UK UK underground, a 1960s counterculture movement in the UK UK underground hip-hop, a 1980s British underground hip-hop scene influenced by UK jazz, electro, and conscious rap UK underground rap, a 2020s underground hip-hop scene influenced by cloud rap, rage, and jerk Mail Rail, a former underground postal railway in London

See also

Transport in the United Kingdom List of metro systems Underground (disambiguation)