Compression may refer to:
Physical science
- Compression (physics), size reduction due to forces
- Compression member, a structural element such as a column
- Compressibility, susceptibility to compression
- Gas compression
- Compression ratio, of a combustion engine
- Compression (geology)
Information science
- Bandwidth compression, reducing effort in data transmission
- Data compression, reducing the data required for information
- Audio compression (data), reducing the data required for audio
- Compression artifact, defect in data due to compression
- Image compression, of digital images
- Video compression
- One-way compression function, a cryptographic primitive
Medicine
- Brain compression, a medical condition
- Compression bandage
- Pressing on the lower abdominal area in an intravenous pyelogram
- Cold compression therapy, for minor injuries
Other
- Amplifier gain compression, due to nonlinearity
- Compression (dance), several techniques
- Compression (functional analysis)
- Compression (phonetics), running syllables together
- Dynamic range compression, reducing audio dynamic range