Headspace may refer to:
- Headspace or ullage, the unfilled space in a container
- Headspace technology, the gaseous constituents of a closed space above liquids or solid emitting and vapors measured using headspace gas chromatography
- Headspace (firearms), a chamber measurement
- Headroom (photographic framing), a concept of aesthetic composition in imaging
Music
- "Headspace", a song by Velvet Revolver from Contraband
- "Headspace", a song by Lewis Capaldi from Divinely Uninspired to a Hellish Extent
- Headspace (Pulse Ultra album), 2002
- Headspace (Ashton Nyte album), 2005
- Headspace (Issues album), 2016
- Headspace (band), a British progressive metal band formed in 2006
Other
- Headspace (company), an online healthcare company specializing in meditation
- Headspace (film), a 2005 horror film
- Headspace (organisation), an Australian non-profit organization for youth mental health