Asimov's

Asimov's Science Fiction

Cover for an issue of Asimov's Science Fiction
Editor	Sheila Williams
Categories	Science Fiction
Frequency	Six times a year
Circulation	22,593
Publisher	Penny Publications
Year founded	1977
First issue	Spring 1977
Country	United States
Based in	Norwalk, Connecticut
Language	English
Website	Asimov's Science Fiction
ISSN	1065-2698
OCLC number	26559528

Asimov's Science Fiction (ISSN 1065-2698) is an American science fiction magazine which publishes science fiction and fantasy and perpetuates the name of author and biochemist Isaac Asimov. It is currently published by Penny Publications. From January 2017, the publication frequency is bimonthly (six issues per year).

Circulation in 2012 was 22,593, as reported in the annual Locus magazine survey.

Asimov's Science Fiction began life as the digest-sized Isaac Asimov's Science Fiction Magazine (or IASFM for short) in 1977. Joel Davis of Davis Publications approached Asimov to lend his name to a new science fiction magazine, after the fashion of Ellery Queen's Mystery Magazine or Alfred Hitchcock's Mystery Magazine. Asimov refused to act as editor, but served instead as editorial director, writing editorials and replying to reader mail until his death in 1992. At Asimov's request George Scithers, the first editor, negotiated an acquisitions contract with the Science Fiction Writers of America providing considerably better terms for writers than had been the periodical standard up to that time.

Initially a quarterly, its first issue was dated December 1976. It changed to a bimonthly in 1978 and began publishing monthly in 1979. In the mid-1980s it was published once every four weeks, with an extra "mid-December" issue. Double issues were added in the early 1990s before the schedule was scaled back to 10 issues per year. From January 2017, the schedule was changed to six "double-sized" issues per year.

The magazine was sold to Bantam Doubleday Dell in January 1992, a few months before Asimov's death, and the title changed to Asimov's Science Fiction. In 1996, Dell Magazines was acquired from BDD by Crosstown Publications, and as of 2012 is part of Penny Publications which is under the same ownership as Crosstown Publications has been, with headquarters in Norwalk, Connecticut and uses a combined Customer Service labelled Penny Press/Dell Magazines. In 1998, the magazine's size changed; it is now taller and slightly wider than the standard digest format (matching other magazines published by its newest corporate parent).