- Gribble, Leonard (Reginald) (1908-1985) (stories)
- Byline also frequently: Leonard R. Gribble.
- Gridban, Volsted; house pseudonym (stories)
- See www.sf-encyclopedia.com/entry/gridban_volsted
- Griebling, Robert T(heodore) (1901-1959) (stories)
- See desturmobed.blogspot.co.uk/2013/04/robert-t-griebling.html
- Grieg, Edvard (Hagerup) (1843-1907) (stories) (assoc.)
- See en.wikipedia.org/wiki/Edvard_Grieg
- Grier, Jennifer A. (fl. 2000s-2010s) (stories)
- See www.psi.edu/about/staff/jgrier/jgrier.html
- Grierson, Francis D(urham) (1888-1972) (stories)
- See tellersofweirdtales.blogspot.com/2013/11/francis-d-grierson-1888-1972.html
- Grieve, Christopher Murray (1892-1978) (stories)
- See en.wikipedia.org/wiki/Hugh_MacDiarmid
- Griff; house pseudonym (stories) (art)
- See www.sf-encyclopedia.com/entry/griff
- Griffey, W(illiam) H(ollis) (1914-1989) (stories)
- Writer. Born in Kentucky.
- Griffin, Brian (1941- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/griffin_brian
- Griffin, E(ditha) Aceituna (1876-1949) (stories)
- See gadetection.pbworks.com/w/page/41018884/Griffin%2C%20Aceituna
- Griffin, (Charles) Frank (1911-1984) (stories) (assoc.)
- Born in Peterborough, England; died in Devon.
- Griffin, Gerald (1803-1840) (stories)
- See en.wikipedia.org/wiki/Gerald_Griffin
- Griffin, H. Terrell (fl. 2010s) (stories) (assoc.)
- See hterrellgriffin.com
- Griffin, [Sir] Lepel (Henry) (1838-1908) (stories) (assoc.)
- See en.wikipedia.org/wiki/Lepel_Griffin
- Griffin, Neal (fl. 2010s) (stories) (assoc.)
- See nealgriffin.com
- Griffin, P(auline) M(argaret) (1947- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/griffin_p_m
- Griffin, Peni R(ae) (1961- ) (stories)
- See www.sf-encyclopedia.com/entry/griffin_peni_r
- Griffin, Russell M(organ) (1943-1986) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/griffin_russell_m
- Griffin, (Alfred) Sercombe (1878-1943) (stories)
- See www.sf-encyclopedia.com/entry/griffin_sercombe
- Griffis, William Elliot (1843-1928) (stories)
- See en.wikipedia.org/wiki/William_Elliot_Griffis
- Griffith, Dick (1913-1984) (stories)
- See www.prorodeohalloffame.com/inductees/by-category/bull-riding/dick-griffith/
- Griffith, George; pseudonym of George C. Griffith-Jones (1857-1906) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/griffith_george
- Griffith, George Bancroft (1841-1909) (stories)
- See www.accessgenealogy.com/new-hampshire/biography-of-george-bancroft-griffith.htm
- Griffith, Helen Sherman (1873-1961) (stories)
- Born in Iowa; playwright; author of books for adults and juveniles.
- Griffith, Mary (1800?-1877) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/griffith_mary
- Griffith, Nicola (June) (1960- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/griffith_nicola
- Griffith, Robert (J.) (fl. 1930s-1950s) (stories)
- Probably not Robert E. Griffith (1906?-1971), a Broadway producer.
- Griffith, Simon (1956- ) (stories) (art)
- Professional actor in England.
- Griffith, William (1878-1936) (stories)
- See www.poets.org/poetsorg/poet/william-griffith
- Griffiths, Alan (1899-1950) (stories) (assoc.)
- See desturmobed.blogspot.com/2018/02/alan-griffiths.html
- Griffiths, [Major] Arthur (George Frederick) (1838-1908) (stories)
- Born in India; after military service, joined the Prison Service, rising to Inspector of Prisons and a well-known penologist.
- Griffiths, Maurice (1902-1997) (stories)
- A noted yachtsman who wrote numerous books, mostly on yachting.
- Griffiths, Rachel Eliza (fl. 2010s) (stories)
- See www.rachelelizagriffiths.com
- Griggs, Tim(othy Douglas) (1948-2013)
- Born in Surrey, England.
- Grigsby, Sean (fl. 2010s) (stories)
- See www.seangrigsby.com
- Grilley, Kate (1943- ) (stories)
- Born in Milwaukee; living in Virgin Islands.
- Grillo-Marxuach, Javier (1969- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Javier_Grillo-Marxuach
- Grills, Michael (fl. 2010s) (art)
- See www.michaelgrills.ca
- Grimaldi, Laura (1928-2012) (stories)
- See en.wikipedia.org/wiki/Laura_Grimaldi
- Grimando, Scott (fl. 2000s-2010s) (art)
- See www.grimstudios.com
- Grimani, Elena de (1975- ) (art)
- See elenadegrimani.com
- Grimes, Burleigh (Arland) (1893-1985) (stories)
- See en.wikipedia.org/wiki/Burleigh_Grimes
- Grimes, Lee (1920-2009) (stories)
- See www.sf-encyclopedia.com/entry/grimes_lee
- Grimes, Robert L. (1901- ) (stories)
- Writer, teacher and sailor. From Indiana.
- Grimm, Mary (1949- ) (stories)
- See clevelandartsprize.org/awardees/mary_grimm.html
- Grimmer, Jordan (fl. 2010s) (art)
- See www.jordangrimmer.co.uk
- Grimshaw, Beatrice (Ethel) (1870-1953) (stories) (art) (assoc.)
- See en.wikipedia.org/wiki/Beatrice_Grimshaw
- Grimsley, Jim (1955- ) (stories)
- See www.sf-encyclopedia.com/entry/grimsley_jim
- Grimwood, Jon(athan David Giles) Courtenay (1953- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/grimwood_jon_courtenay
- Grimwood, Ken(neth) (1944-2003) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/grimwood_ken
- Grimwood, Terry (fl. 1990s-2010s) (stories)
- See en.wikipedia.org/wiki/Terry_Grimwood
- Grinnell, George Bird (1849-1938) (stories)
- See en.wikipedia.org/wiki/George_Bird_Grinnell
- Grintalis, Damien (Angelica) (Walters) (1968- ) (stories)
- See damienangelicawalters.com
- Grip; pseudonym (fl. 1880s-1890s) (stories)
- See www.sf-encyclopedia.com/entry/grip_2
- Griscom, Lloyd Carpenter (1872-1959) (stories) (assoc.)
- See en.wikipedia.org/wiki/Lloyd_Carpenter_Griscom
- Grisewood, R(obert) Norman (1876-1923) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/grisewood_r_norman
- Grissinger, Harry R. (fl. 1920s) (art)
- See strippersguide.blogspot.com/2007/07/news-of-yore-harry-grissinger-profiled.html
- Grisso, Geoffrey (fl. 2000s-2010s) (art)
- See www.behance.net/grisso
- Griswold, Amy (fl. 1990s-2010s) (stories)
- See www.sf-encyclopedia.com/entry/griswold_amy
- Griswold, [Rev.] Latta (1876-1931) (stories)
- Born in Lancaster, Ohio; educated at Princeton University and Seminary; died in Edinburgh.
- Griswold, Rufus W(ilmot) (1815-1857) (stories)
- See en.wikipedia.org/wiki/Rufus_Wilmot_Griswold
- Grixti, Dayle Robert (fl. 2010s) (stories)
- See www.goodreads.com/author/show/6600925.Dayle_Robert_Grixti
- Groberg, Florent (fl. 2010s) (stories) (assoc.)
- See www.dailymail.co.uk/news/article-3311638/Medal-Honor-recipient-tackled-suicide-bomber-saved-lives.html
- Grock [born Charles Adrien Wettach] (1880-1959) (stories) (assoc.)
- See en.wikipedia.org/wiki/Grock
- Groesbeck, Dan Sayre (1878-1950) (stories) (art)
- Died in Los Angeles, California.
- Groff, Lauren (1978- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Lauren_Groff
- Grogan, Ewart Scott (1874-1967) (stories)
- See en.wikipedia.org/wiki/Ewart_Grogan
- Grogan, Gerald (Forman) (1884-1918) (stories)
- See www.sf-encyclopedia.com/entry/grogan_gerald
- Grombach, John V(alentin) (1901-1982) (stories)
- Business consultant and an expert on athletics. Born in New Orleans, Louisiana; lived in New York City. See also: Seidman, Karl S. ?
- Gromovataya (, Irina) (fl. 2010s) (art)
- See www.gromovataya.com/en
- Grondona, L(eo) St. Clare (1890-1982) (stories)
- See www.stpats.vic.edu.au/en/news/article/leo-st-clare-grondona/
- Groner, Augusta [i.e., Frau Auguste Groner, née Koppalik] (1850-1929) (stories)
- See www.sf-encyclopedia.com/entry/groner_augusta/auguste
- Groom, K(athleen) C(larice Louise) [Mrs. Sydney Groom] (1872-1954) (stories)
- See bearalley.blogspot.co.uk/2007/09/kathleen-clarisa-cornwell.html
- Groom, (Arthur John) Pelham (1906-1978) (stories)
- See www.sf-encyclopedia.com/entry/groom_pelham
- Gropp, Richard E. (fl. 2010s) (stories)
- See www.troublebox.com
- Gropper, Milton Herbert (1896-1955) (stories)
- Born in New York City; studied at Columbia University; newspaper reporter turned playwright; film scriptwriter.
- Groseclose, Elgin E(arl) (1899-1983) (stories)
- See en.wikipedia.org/wiki/Elgin_Groseclose
- Grosley, Pierre Jean (1718-1785) (stories) (assoc.)
- See en.wikipedia.org/wiki/Pierre-Jean_Grosley
- Gross, Andrew (1952- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Andrew_Gross
- Gross, Cory (fl. 2000s) (stories)
- See voyagesextraordinaires.blogspot.co.uk
- Gross, Dave (fl. 1990s-2010s) (stories) (assoc.)
- See frabjousdave.com
- Gross, George (1909-2003) (art)
- See pulpartists.com/Gross.html
- Gross, Milt (1895-1953) (stories) (art)
- See en.wikipedia.org/wiki/Milt_Gross
- Grossinger, Richard [born Richard Towers] (1944- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Richard_Grossinger
- Grossman, Austin (1969- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/grossman_austin
- Grossman, David (1954- ) (stories)
- See en.wikipedia.org/wiki/David_Grossman
- Grossman, Judith (1937- ) (stories)
- See en.wikipedia.org/wiki/Judith_Grossman
- Grossman, Robert (1940-2018) (art)
- See en.wikipedia.org/wiki/Robert_Grossman
- Grossman, Vasily (Semyonovich) (1905-1964) (stories) (assoc.)
- See en.wikipedia.org/wiki/Vasily_Grossman
- Grosvenor, [Lady] Mary Frances (1821-1912) (stories) (assoc.)
- See www.thepeerage.com/p970.htm
- Groth, Bobbie (fl. 2010s) (stories)
- See bobbiegroth.wordpress.com
- Groth, John (1908-1988) (stories) (art) (assoc.)
- See www.nytimes.com/1988/06/30/obituaries/john-groth-dies-at-80-illustrator-and-teacher.html
- Grotta, Daniel (1944-2015) (stories)
- See www.grotta.net/bio.htm
- Grotta, Sally Wiener (1949- ) (stories) (assoc.)
- See www.grotta.net
- Grotz, Jennifer (1971- ) (stories)
- See en.wikipedia.org/wiki/Jennifer_Grotz
- Grove, Agnes (Geraldine, née Pitt-Rivers) (1863-1926) (stories)
- See web.prm.ox.ac.uk/rpr/index.php/article-index/12-articles/749-concerning-agnes/index.html
- Grove, (Thomas Newcomen) Archibald (1855-1920) (stories)
- See en.wikipedia.org/wiki/Archibald_Grove
- Grove, Frederick Philip [originally Felix Paul Greve] (1879-1948) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/grove_frederick_philip