Deadletter is the name of a rock band originating from the United Kingdom, associated with alternative rock and post-hardcore styles. Active primarily in the early 2000s, the group combined melodic songwriting with heavier, dynamic guitar-driven arrangements and emotive vocal delivery, reflecting trends in UK alternative and emo-influenced scenes of that period. Their music typically features energetic rhythms, prominent guitar hooks and an emphasis on both melody and emotional intensity, aligning them with contemporaneous bands that blended punk-derived aggression with pop sensibilities.