- A photographic flash produces light required to produce a quality photograph in low light conditions.
- Macromedia Flash is a graphics animation computer software product by Macromedia.
- The Flash is the name of a number of comic book superheroes published by DC Comics. These heroes share the ability to run at superhuman speed.
- Flash memory is a form of computer memory which allows multiple locations to be modified in a single programming operation.
- Flash is a term used in telecommunication.