Subterranean refers to something below ground, under the Earth's surface or underground.

Subterranean may also refer to:

• Subterranean (album), an album by Swedish metal band In Flames
• Subterranean (TV series), a MTV2 television series
• Subterranean fiction, a subgenre of fiction
• Subterranean Records, a record label based in San Francisco, California