Scan may refer to:
Acronyms:
- Schedules for Clinical Assessment in Neuropsychiatry (SCAN), a psychiatric diagnostic tool developed by WHO
- Shared Check Authorization Network (SCAN), a database of bad check writers and collection agency for bad checks
- Space Communications and Navigation Program (SCaN)
- S.C.A.N, Stop Child Abuse and Neglect, non-for profit organization based in Fort Wayne, Indiana.
Businesses:
- Scan Furniture, a retail chain based in Washington, D.C. specializing in Scandinavian furniture
- Scan AB or Scan Foods UK Ltd, the Swedish and UK subsidiaries of the Finnish HKScan Oyj
- Seattle Community Access Network (SCAN) is the public access TV channel is Seattle, Washington
- Scan, Inc., tech company based in San Francisco CA, specializing in mobile technologies and design.
Electronics or computer related:
- Counter-scanning, in physical micro and nanotopography measuring instruments like scanning probe microscope
- Elevator algorithm (also SCAN) disk scheduling algorithm
- Image scanning
- Optical character recognition, optical recognition of printed text or printed sheet music
- Port scanner in computer networking
- Prefix sum is an operation on lists that is also known as the scan operator
- Scan chain, a type of manufacturing test used with integrated circuits
- Graham scan, an algorithm for finding the convex hull of a set of points in the plane
- Scan line
- Raster scan
Medical:
- Medical ultrasonography, the medical procedure for examining internal structures, especially when applied to developing foetuses in the womb
- X-ray computed tomography
- Magnetic resonance imaging
- Switch Access Scanning, a technique that allows users with motor impairments to use a computer using switch access
- Partner assisted scanning, a technique that allows a person with severe disabilities to communicate
Other uses:
- Systems of scansion, the analysis of writing and verse regarding rhythmic and especially metrical structure
- "Scan" (Prison Break episode), an episode of the television series Prison Break
- Scan (horse) (born 1988), an American thoroughbred racehorse