RUN was an American computer magazine published monthly by IDG Communications with its first issue debuting in January 1984. Bi-monthly publishing began in June/July 1990 (issue #78, volume 7 number 6), and went on until the magazine folded in November/December 1992 (issue #94, volume 9 number 6). In its heyday, RUN's monthly circulation was in the 200,000–300,000 range. Folio, the trade journal of the magazine industry, rated it as the second fastest-growing U.S. magazine of 1985.

The magazine contained articles about Commodore 8-bit home computers and peripherals, as well as reviews on available software packages for the computers. In addition, every issue featured several type-in programs written in BASIC and/or machine language. The magazine's name came from the BASIC command "RUN", which started execution of the computer's program, presumably typed in from the magazine.