Drum and bass (commonly abbreviated as DnB, D&B, or D'n'B) is a genre of electronic dance music characterised by fast breakbeats (typically 165–185 beats per minute) with heavy bass and sub-bass lines, samples, and synthesizers. The genre grew out of the UK's jungle scene in the 1990s.

The popularity of drum and bass at its commercial peak ran parallel to several other UK dance styles. A major influence was the original Jamaican dub and reggae sound that influenced jungle's bass-heavy sound. Another feature of the style is the complex syncopation of the drum tracks' breakbeat. Drum and bass subgenres include breakcore, ragga jungle, hardstep, darkstep, techstep, neurofunk, ambient drum and bass, liquid funk (also known as liquid drum and bass), jump up, drumfunk, sambass, and drill 'n' bass. Drum and bass has influenced other genres such as big beat, dubstep, trip hop and has been influenced by hip hop, house, ambient music, techno, jazz, rock and pop.

Drum and bass is dominated by a relatively small group of record labels. Major international music labels had shown very little interest in the drum and bass scene until BMG Rights Management acquired RAM in February 2016. Since then, the genre has seen a significant growth in exposure. Whilst the origin of drum and bass music is in the UK, the genre has evolved considerably with many other prominent fanbases located all over the world.