Seiko Epson Corporation, better known as just "Epson" is one of the world's largest makers of computer printers and equipment related to imaging. Founded in Japan in 1942, they forged an excellent reputation for the quality of their dot-matrix printers during the 1970s and 1980s. As the world moved to inkjet technologies, Epson moved with it, and is still one of the world's leading printer manufacturers.

Epson also produce scanners and projectors, as well as so-called "all-in-one" or "multifunction" devices that combine a printer, scanner and copier in a single unit, often with a colour LCD display and memory card or USB slot.

For all Epson-compatible ink cartridges, including those made by other companies, please see the Epson ink selector.