Acoustic may refer to:
In science:
- Acoustics, a branch of physics that studies sound
- Musical acoustics, the branch of acoustics that studies the physics of music
- Acoustic metamaterials, engineered materials with atypical properties
- External acoustic meatus, another name for the ear canal
- Acoustic recording, a pre-microphone method of recording used, for instance, on the Graphophone
In music:
- Acoustic music, music that solely or primarily uses acoustic instruments
- Acoustic guitar, as opposed to electric guitar
- Acoustic bass guitar, as opposed to electric bass guitar
- Acoustic Disc, a record label
- Piano acoustics
- Acoustic fingerprint
- Acoustic (Everything but the Girl album), 1992
- Acoustic (Deine Lakaien album), 1995
- Acoustic (Brandi Carlile album), 2004
- Acoustic (John Lennon album), 2004
- Acoustic (Love Amongst Ruin album), 2011
- Acústico (Weberty Moreira album), 2010
- Acoustic EP (disambiguation), various albums
Warfare
- Acoustic location, a pre-radar and pre-sonar method of detecting hostile vehicles and vessels
- Acoustic torpedo
- Acoustic signature
Other:
- Acoustic Control Corporation, a company which produced instrument amplifiers using Acoustic as a brand name
- Acoustic thermometry, observation of the oceans' climates using long-range acoustic instruments
- Acoustic cryptanalysis, in cryptography, a side channel attack which exploits sounds
- Acoustic (magazine)
- Acoustic (film)
- Direct Field Acoustic Testing