- Infante, Victor D. (fl. 2000s-2010s) (stories)
- See www.victorinfante.com
- Infield, Glenn (1920-1981) (stories)
- In U.S. Army Air Forces and U.S. Air Force as a bomber pilot and instructor. Born in New Castle, Pennsylvania; lived in Beaver Falls, Pennsylvania.
- Ing, Dean (Charles) (1931- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/ing_dean
- Ingalls, Rachel (Holmes) (1940-2019) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/ingalls_rachel
- Ingalls, Redfield (fl. 1910s) (stories)
- Writer and editor. Born in Granby, Quebec, Canada.
- Ingalls, (David) Sinton (1899-1985) (stories) (assoc.)
- See en.wikipedia.org/wiki/David_Sinton_Ingalls
- Ingals, Theodore Ted (1914-1977) (stories)
- See en.wikisource.org/wiki/Author:Theodore_Ingals
- Ingelow, Jean (1820-1897) (stories) (assoc.)
- See en.wikipedia.org/wiki/Jean_Ingelow
- Ingersoll, Ernest (1852-1946) (stories)
- See en.wikipedia.org/wiki/Ernest_Ingersoll
- Ingersoll, Robert G(reen) (1833-1899) (stories)
- See en.wikipedia.org/wiki/Robert_G._Ingersoll
- Ingersoll, Will(iam) E(rnest) (1879-1968) (stories)
- See shoallakehistory.com/60-sl-minutes-2/
- Ingham, Travis (fl. 1920s-1940s) (stories) (assoc.)
- Novelist, journalist, brother of writer Katharine Brush; also wrote under the name Norman MacDonald. Born in Boston, Massachusetts (?); lived in San Francisco, California.
- Ingraham, Joseph Holt (1809-1860) (stories)
- See en.wikipedia.org/wiki/Joseph_Holt_Ingraham
- Ingraham, Prentiss (1843-1904) (stories)
- See www.ulib.niu.edu/badndp/ingraham_prentiss.html
- Ingram, David H. (fl. 2000s-2010s) (stories) (assoc.)
- See davidhingram.com/?page_id=3
- Ingram, Eleanor M(arie) (1886-1921) (stories)
- Born in New York City.
- Ingram, [Lady] Mary Eliza (née Stirling) (1851-1925) (stories)
- See oa.anu.edu.au/obituary/ingram-lady-mary-eliza-14778
- Ings, Simon D. (1965- ) (stories) (art) (assoc.)
- See www.sf-encyclopedia.com/entry/ings_simon
- Iniguez, Pedro (fl. 2010s) (stories)
- See www.amazon.com/Pedro-Iniguez/e/B00OYSUAJ0
- Inland, Walter (fl. 1920s) (stories)
- Traveller. Born in Texas.
- Innes, (Ralph) Hammond (1913-1998) (stories) (assoc.)
- See en.wikipedia.org/wiki/Hammond_Innes
- Innes, Michael; pseudonym of J. I. M. Stewart (1906-1994) (stories) (assoc.)
- See en.wikipedia.org/wiki/Michael_Innes
- Innes, (Arthur) Norman (1874-1953?) (stories)
- Born in Croydon, London, England.
- Inness, George (1825-1894) (stories) (art) (assoc.)
- See en.wikipedia.org/wiki/George_Inness
- Inness, George, Jr. (1854-1926) (art)
- See en.wikipedia.org/wiki/George_Inness,_Jr.
- Inukai, Kyohei (1886-1954) (art)
- See en.wikipedia.org/wiki/Kyohei_Inukai_(b_1886)
- Iovanovich, Zmai Iovan (1833-1904) (stories) (assoc.)
- See en.wikisource.org/wiki/Zmai_Iovan_Iovanovich_-_the_Chief_Servian_Poet_of_To-Day
- Irelan, Patrick (1943- ) (stories)
- See www.lib.uiowa.edu/scua/msc/tomsc850/msc845/msc845_irelanfamily.htm
- Ireland, David (Neil) (1927- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/David_Ireland_(author)
- Ireland, Justina (fl. 2010s) (stories)
- See justinaireland.com
- Irish, Ned [i.e., Edward S. Irish] (1905-1982) (stories)
- See en.wikipedia.org/wiki/Ned_Irish
- Ironside, (William) Edmund (, 1st Baron Ironside) (1880-1959) (stories) (assoc.)
- See en.wikipedia.org/wiki/Edmund_Ironside,_1st_Baron_Ironside
- Ironside, Robin (1912-1965) (stories)
- See www.robinironside.org
- Irvin, Christopher (L.) (fl. 2010s) (stories)
- See christopherirvin.net
- Irvin, Rea (1881-1972) (stories) (art)
- See en.wikipedia.org/wiki/Rea_Irvin
- Irvine, Alexander C. (1969- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/irvine_alexander_c
- Irvine, Helen (Florence) Douglas (1880-1947) (stories)
- Born in Scotland.
- Irvine, Ian (1950- ) (stories) (assoc.)
- Has Ph.D. in marine science; heads consulting firm in Australia which conducts environmental studies.
- Irvine, J(ames) P. (1835-1892) (stories)
- See www.pa-roots.org/data/read.php?425,680850
- Irving, Clifford (Michael) (1930-2017) (stories)
- See en.wikipedia.org/wiki/Clifford_Irving
- Irving, Ethel (1869-1963) (stories) (assoc.)
- See en.wikipedia.org/wiki/Ethel_Irving
- Irving, H(arry) B(rodribb) (1870-1919) (stories) (assoc.)
- See en.wikipedia.org/wiki/Harry_Brodribb_Irving
- Irving, Henry [born John Henry Brodribb] (1838-1905) (stories) (assoc.)
- See en.wikipedia.org/wiki/Henry_Irving
- Irving, Minna [Mrs. Harry Michener] (1857-1940) (stories) (art) (assoc.)
- Lived in Terrytown, NY.
- Irving, Washington (1783-1859) (stories) (assoc.)
- See en.wikipedia.org/wiki/Washington_Irving
- Irwin, Grace (Adelaide) Luce (1877-1914) (stories)
- See www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=84716251
- Irwin, Inez Haynes (1873-1970) (stories)
- Born in Rio de Janeiro; educated at Radcliffe College, Boston; variously president of the Authors League of America and the Authors Guild.
- Irwin, J. J. (fl. 2000s-2010s) (stories)
- See sbprabooks.com/jjirwin
- Irwin, Theodore D. (1907-1999) (stories)
- Free-lance writer and editor. Born in New York City.
- Irwin, Wallace (Admah) (1875-1959) (stories) (art)
- See en.wikipedia.org/wiki/Wallace_Irwin
- Irwin, Will(iam Henry) (1873-1948) (stories) (assoc.)
- See en.wikipedia.org/wiki/William_Henry_Irwin
- Isaacs, Rufus (Daniel) (1860-1935) (stories) (assoc.)
- See en.wikipedia.org/wiki/Rufus_Isaacs,_1st_Marquess_of_Reading
- Isaacs, Susan (1943- ) (stories)
- See en.wikipedia.org/wiki/Susan_Isaacs
- Isabel, Cristina (fl. 2010s) (stories)
- See cristinaisabelauthor.com
- Isacksen, Jeff (fl. 2010s) (stories)
- See www.beneath-ceaseless-skies.com/authors/jeff-isacksen/
- Isbell, Lucile [i.e., Lucile J. Malinda Isbell Stall] (1896-1965) (stories)
- See www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=95862782
- Isely, Reymoure Keith (fl. 1950s-1970s) (stories)
- Broadcasting executive and radio actor turned farmer in Canada.
- Isenberg, Jane (Frances) (1940- ) (stories)
- Living in New Jersey; faculty member at a community college.
- Ish-Kishor, Sulamith (1896-1977) (stories)
- See en.wikipedia.org/wiki/Sulamith_Ish-kishor
- Isham, Frederic S(tewart) (1866-1922) (stories)
- Born in Detroit.
- Isham, Ralph E. (fl. 1910s) (stories)
- Not to be confused with business executive Ralph Isham (1865-1937).
- Isherwood, Christopher (1904-1986) (stories) (assoc.)
- See en.wikipedia.org/wiki/Christopher_Isherwood
- Ishiguro, Kazuo (1954- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Kazuo_Ishiguro
- Ishihara, Fujio (1933- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/ishihara_fujio
- Isip, (Pagsilang) Rey (1911-1979) (art)
- See pulpartists.com/Isip.html
- Iskowitz, Joel (1946- ) (art)
- See en.wikipedia.org/wiki/Joel_Iskowitz
- Islam, Nazifa (fl. 2010s) (stories)
- See www.nazifaislam.com
- Isle, Alex (1963- ) (stories)
- See en.wikipedia.org/wiki/Sue_Isle
- Islington, James (fl. 2010s) (stories)
- See www.jamesislington.com
- Ison, Donna (fl. 2010s) (stories)
- See www.thebourbonista.com
- Ison, Tara (fl. 1990s-2010s) (stories)
- See en.wikipedia.org/wiki/Tara_Ison
- Israel, Jeremiah (fl. 2010s) (stories)
- See jdotis.com
- Israels, Josef [born Jozef Israëls] (1824-1911) (stories) (assoc.)
- See en.wikipedia.org/wiki/Jozef_Isra%C3%ABls
- Israels, Josef, II (1906-1954) (stories)
- Publicist, traveler, magazine writer, journalist, lecturer on foreign affairs, licensed pilot.
- Isvandi, Mehrdad (fl. 2010s) (stories) (art) (assoc.)
- See mehrdadisvandi.blogspot.co.uk
- Ito, Norio (1942- ) (stories)
- See www.sf-encyclopedia.com/entry/ito_norio
- Iversen-Ejve, Jonatan (fl. 2000s) (art)
- See iversenejve.blogspot.co.uk
- Ivie, Larry (1937-2014) (art)
- See en.wikipedia.org/wiki/Larry_Ivie
- Ivkovich, Larry (fl. 2000s-2010s) (stories)
- See larryivkovichauthor.wordpress.com
- Ivory, Percy Van Eman (1883-1960) (art)
- See percyivory.homestead.com
- Ivy, Anne; pseudonym (fl. 2010s) (stories) (assoc.)
- See www.beneath-ceaseless-skies.com/authors/anne-ivy/
- Ivy, Maggie (fl. 2010s) (stories) (art) (assoc.)
- See www.maggieivy.com
- Iwan-Müller, E(rnest) B(ruce) (fl. 1853-1910) (stories)
- See www.whistler.arts.gla.ac.uk/correspondence/people/biog/?bid=Iwan_GA&initial=I
- Izzard, Ralph (William Burdick) (1910-1992) (stories) (assoc.)
- See en.wikipedia.org/wiki/Ralph_Izzard
- Izzard, Raoul (1976- ) (stories)
- See excelsizeus.wordpress.com
- Izzi, Eugene (1953-1996) (stories) (assoc.)
- Born and raised in Chicago; steelworker and construction worker before turning to writing.
- Jääskeläinen, Pasi Ilmari (1966- ) (stories) (assoc.)
- See pushkinpress.com/author/pasi-ilmari-jaaskelainen
- Jablokov, Alexander (1956- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/jablokov_alexander
- Jablonsky, William (fl. 2000s-2010s) (stories)
- See siyahi.in/2011/06/william-jablonsky
- Jaccaci, August(o) F(lorian) (1857-1930) (stories)
- See www.aaa.si.edu/collections/august-jaccaci-papers-6877/more
- Jacinto, Jorge (fl. 2010s) (art)
- See www.jorgejacinto.com
- Jack, Ian (1945- ) (stories)
- See en.wikipedia.org/wiki/Ian_Jack
- Jack, Richard (1866-1952) (stories) (art) (assoc.)
- See en.wikipedia.org/wiki/Richard_Jack
- Jackman, Stuart (Brooke) (1922-2002)
- See www.sf-encyclopedia.com/entry/jackman_stuart
- Jackman, Terry (fl. 2000s-2010s) (stories)
- See www.terryjackman.co.uk
- Jackson, Andrew (1767-1845) (stories) (assoc.)
- See en.wikipedia.org/wiki/Andrew_Jackson
- Jackson, Bruce (1936- ) (art)
- Director of Studies in American Culture, Professor of English and Comparative Literature, and Adjunct Professor of Law at the State University of New York at Buffalo.
- Jackson, C(aary) Paul (1902-1991) (stories)
- See findagrave.com/cgi-bin/fg.cgi/www.oocities.com/wildstar.family/fg.cgi?page=gr&GRid=14584100
- Jackson, Charles Tenney (1874-{c}1950) (stories)
- Journalist and novelist. Born in St. Louis, Missouri; lived in Miami, Florida.
- Jackson, Edward Payson (1840-1906) (stories)
- See www.sf-encyclopedia.com/entry/jackson_edward_payson