| Underworld | |
| Type: | studio |
| Artist: | Adagio |
| Cover: | Underworld (album).jpg |
| Released: | 23 July 2003 |
| Recorded: | 2003 |
| Genre: | Progressive metal, neoclassical metal, symphonic metal |
| Length: | 63.30 |
| Label: | Nothing to Say |
| Producer: | Dennis Ward |
| Prev Title: | Sanctus Ignis |
| Prev Year: | 2001 |
| Next Title: | A Band in Upperworld |
| Next Year: | 2004 |
Underworld is the second studio album by French progressive/neoclassical metal band Adagio, released in 2003. It is the last by the band to feature David Readman on vocals and Dirk Bruinenberg on drums.
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