David Geddes Hartwell (b. July 10, 1941) is an American editor of science fiction and fantasy. He has worked for Signet (1971—1973), Berkley Putnam (1973—1978), Pocket (where he founded the Timescape imprint, 1978—1983, and created the Pocket Books Star Trek publishing line), and Tor Books (where he spearheaded Tor's Canadian publishing initiative, and was also influential in bringing many Australian writers to the US market, 1984-date), and has published numerous anthologies. Since 1995, his title at Tor/Forge Books has been "Senior Editor." He chairs the board of directors of the World Fantasy Convention and, with Gordon Van Gelder, is the administrator of the Philip K. Dick Award. He holds a Ph.D. in comparative medieval literature.
He lives in Pleasantville, New York with his wife Kathryn Cramer and their two children.
Each year he edits two anthologies, Year's Best SF (started in 1996 and co-edited with Kathryn Cramer since 2002) and Year's Best Fantasy (co-edited with Cramer since its first publication in 2001). Both anthologies have consistently placed in the top 10 of the Locus annual reader poll in the category of Best Anthology. In 1988, he won the World Fantasy Award in the category Best Anthology for The Dark Descent. He has been nominated for the Hugo Award in the category of Best Professional Editor and Best Editor Long Form on numerous occasions, and won in 2006, 2008 and 2009. He edited the best-novel Nebula Award-winners Timescape by Gregory Benford (published 1980), The Claw of the Conciliator by Gene Wolfe (published 1981), and No Enemy But Time by Michael Bishop (published 1982), and the best-novelHugo Award-winner Hominids by Robert J. Sawyer (published 2002).
The New York Review of Science Fiction (1988—present) with Kathryn Cramer and Ariel Haméon and Kevin J. Maroney and Arthur D. Hlavaty and Matthew Appleton and others
Anthology series
The Dark Descent
The Dark Descent (1987)
The Colour of Evil (1990)
The Medusa in the Shield (1990)
A Fabulous Formless Darkness (1992)
Year's Best SF
Year's Best SF (1996)
Year's Best SF 2 (1997)
Year's Best SF 3 (1998)
Year's Best SF 4 (1999)
Year's Best SF 5 (2000)
Year's Best SF 6 (2001)
Year's Best SF 7 (2002) with Kathryn Cramer
Year's Best SF 8 (2003) with Kathryn Cramer
Year's Best SF 9 (2004) with Kathryn Cramer
Year's Best SF 10 (2005) with Kathryn Cramer
Year's Best SF 11 (2006) with Kathryn Cramer
Year's Best SF 12 (2007) with Kathryn Cramer
Year's Best SF 13 (2008) with Kathryn Cramer
Year's Best SF 14 (2009) with Kathryn Cramer
Foundations of Fear
Foundations of Fear (1992)
Visions of Fear (1994)
Year’s Best Fantasy
Year’s Best Fantasy (2001) with Kathryn Cramer
Year’s Best Fantasy 2 (2002) with Kathryn Cramer
Year’s Best Fantasy 3 (2003) with Kathryn Cramer
Year’s Best Fantasy 4 (2004) with Kathryn Cramer
Year's Best Fantasy 5 (2005) with Kathryn Cramer
Year's Best Fantasy 6 (2006) with Kathryn Cramer (Tachyon Publications)
Year's Best Fantasy 7 (2007) with Kathryn Cramer (Tachyon Publications)
Stand alone anthologies
The Battle of the Monsters and Other Stories (1976) with L. W. Currey
The World Treasury of Science Fiction (1988)
Masterpieces of Fantasy and Enchantment (1988) with Kathryn Cramer
Spirits of Christmas (1989) with Kathryn Cramer
Christmas Stars (1993)
Christmas Forever (1993)
Christmas Magic (1994)
Northern Stars: The Anthology of Canadian Science Fiction (1994) with Glenn Grant
The Screaming Skull and Other Great American Ghost Stories (1994)
The Ascent of Wonder: The Evolution of Hard SF THE ASCENT OF WONDER, edited by David G. Hartwell and Kathryn Cramer (1994) with Kathryn Cramer
Masterpieces of Fantasy and Wonder (1994) with Kathryn Cramer
Visions of Wonder (1996) with Milton T. Wolf
The Science Fiction Century (1997)
Bodies of the Dead and Other Great American Ghost Stories (1997)
Northern Suns (1999) with Glenn Grant
Centaurus: The Best of Australian Science Fiction (1999) with Damien Broderick
The Hard SF Renaissance (2002) with Kathryn Cramer
The Science Fiction Century, Volume One (2006)
The Space Opera Renaissance (2006) with Kathryn Cramer (Tor Books)
Nonfiction
Age of Wonders: Exploring the World of Science Fiction (1985)