- Yeats, William Butler (1865-1939) (stories)
- See en.wikipedia.org/wiki/W._B._Yeats
- Yee, Reimena (fl. 2010s) (art)
- See reimenayee.com
- Yefremov, Ivan (Antonovich) (1907-1972) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/yefremov_ivan
- Yelinek, Kathryn (fl. 2010s) (stories)
- See kathrynyelinek.com
- Yellin, Tamar (1963- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Tamar_Yellin
- Yellowlees, [Sir] Henry (1919-2006) (stories) (assoc.)
- See en.wikipedia.org/wiki/Henry_Yellowlees
- Yelnick, Claude (1923- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/yelnick_claude
- Yeowell, Steve (fl. 1980s) (stories) (assoc.)
- See en.wikipedia.org/wiki/Steve_Yeowell
- Yep, Laurence (Michael) (1948- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/yep_laurence
- Yerxa, Leroy (1915-1946) (stories)
- See www.sf-encyclopedia.com/entry/yerxa_leroy
- Yi, Angus (fl. 2010s) (art)
- See yichenglong1985.deviantart.com
- Yi, Nu Nu (1957- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Nu_Nu_Yi
- Yi-Sheng, Ng (1980- ) (stories)
- See en.wikipedia.org/wiki/Ng_Yi-Sheng
- Yo, Ku Kuru (fl. 2010s) (art)
- See kukuruyo.com
- Yoachim, Caroline M. (fl. 2000s-2010s) (stories) (assoc.)
- See carolineyoachim.com
- Yoe, Craig (1951- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Craig_Yoe
- Yohe, John (fl. 2000s-2010s) (stories)
- See www.johnyohe.com
- Yoke, Carl B(ernard) (1937- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/yoke_carl_b
- Yolen, Jane [i.e., Jane Hyatt Yolen Stemple] (1939- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/yolen_jane
- York, Christina F. (fl. 1990s-2010s) (stories)
- See christy-evans-mystery.blogspot.co.uk
- York, J(ames) Steven (1957- ) (stories)
- See www.sf-encyclopedia.com/entry/york_j_steven
- Yorkston, Sophie (fl. 2010s) (stories)
- See www.smoph.org
- Yoss; pseudonym of José Miguel Sánchez Gómez (1969- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/yoss
- Youd, C(hristopher) S(amuel) [working name of Sam Youd] (1922-2012) (stories) (assoc.)
- Note: His birth name, given thus, was expanded in many places to Samuel, and he adopted Christopher as his first name when confirmed into the Church of England, but neither change was ever made official.
- Youers, Rio (fl. 2000s-2010s) (stories) (assoc.)
- See rioyouers.com
- Youll, Paul (1965- ) (stories) (art) (assoc.)
- See en.wikipedia.org/wiki/Paul_Youll
- Young, C(larence) E. (fl. 2010s) (stories)
- See writeonrighton.com
- Young, D. L. (fl. 2010s) (stories)
- See dlyoungfiction.com
- Young, Eric Brett (1892-1931) (stories)
- Brother of Francis Brett Young.
- Young, Francis Brett (1884-1954) (stories) (assoc.)
- Brother of Eric Brett Young.
- Young, Grahaeme Barrasford (fl. 1980s-2010s) (stories)
- See www.ariadnethread.net/index.php/the-authors/182-grahaeme-barrasford-young
- Young, Jim [i.e., James Maxwell Young] (1951-2012) (stories)
- See www.sf-encyclopedia.com/entry/young_jim
- Young, Joe (fl. 2010s) (stories) (art)
- See www.artistjoeyoung.com
- Young, Marty (fl. 2000s-2010s) (stories)
- See martyyoung.com
- Young, Michael (fl. 2010s) (stories)
- See www.clippings.me/mdybyu
- Young, Robert F(ranklin) (1915-1986) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/young_robert_f
- Yu, Charles (1976- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/yu_charles
- Yu, Mimi (fl. 2010s) (stories) (assoc.)
- See www.mimiyu.info
- Yuan, Changming (fl. 2000s-2010s) (stories)
- See modernpoet.proboards.com/index.cgi?board=changmingyuan
- Yuan-Innes, Melissa J. (fl. 1990s-2010s) (stories)
- See melissayuaninnes.wordpress.com
- Yulie, Trace (fl. 2010s) (stories)
- See traceyulie.com
- Yungbluth, Jason (fl. 2010s) (art)
- See www.whatisdeepfried.com
- Yuzna, Brian (1949- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Brian_Yuzna
- Zacherle, John C. (1919-2016) (stories)
- See en.wikipedia.org/wiki/John_Zacherle
- Zagat, Arthur Leo (1895-1949) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/zagat_arthur_leo
- Zagustina, Ekaterina (fl. 2010s) (stories) (art) (assoc.)
- See www.katjafaith.com
- Zaharick, John (fl. 2010s) (stories)
- See www.johnzaharick.com
- Zahn, Timothy (1951- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/zahn_timothy
- ZahZah, Omar (fl. 2010s) (stories)
- See www.omarzahzah.com
- Zakirov, Eldar (fl. 2000s-2010s) (art)
- See www.eldarzakirov.com
- Zandstra, Matt (fl. 2010s) (stories)
- See www.getinstance.com
- Zangara, Orion (fl. 2010s) (art)
- See orionzangara.com
- Zárate, Oscar (1942- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Oscar_Z%C3%A1rate
- Zawadzki, Dariusz (fl. 2000s-2010s) (stories) (art) (assoc.)
- See 22zddr.deviantart.com
- Zebrowski, George (Thaddeus) [originally Jerzy Tadeuz Zebrowski] (1945- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/zebrowski_george
- Zedan, B. (fl. 2000s) (stories)
- See bzedan.com
- Zeigfreid, Karl; house pseudonym (stories)
- See www.sf-encyclopedia.com/entry/zeigfreid_karl
- Zelazny, Roger (Joseph Christopher) (1937-1995) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/zelazny_roger
- Zelcans, Janis (fl. 2010s) (stories)
- See www.bewilderingstories.com/issue538/zelcans_welcome.html
- Zelenyj, Alexander (fl. 1990s-2010s) (stories) (assoc.)
- See www.alexanderzelenyj.com
- Zelvin, Elizabeth (fl. 2000s-2010s) (stories)
- See www.elizabethzelvin.com
- Zelvin, Victoria (fl. 2010s) (stories)
- See www.victoriazelvin.com
- Zephyrhant (fl. 2010s) (art)
- See zephyrhant.deviantart.com
- Zhao Haihong (1977- ) (stories)
- See www.sf-encyclopedia.com/entry/zhao_haihong
- Zigomanis, Les (fl. 2010s) (stories)
- See www.leszig.com
- Zilelian, Aida (fl. 2010s) (stories)
- See www.aidazilelian.com
- iljak, Aleksandar (1963- ) (stories)
- See en.wikipedia.org/wiki/Aleksandar_Ziljak
- Zimmer, Paul Edwin (1943-1997) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/zimmer_paul_edwin
- Zimmerman, Fred (fl. 1930s-1950s) (stories)
- Probably a pseudonym.
- Zimmerman, Minerva (fl. 2010s) (stories)
- See minervazimmerman.com
- Zinberg, Leonard S(amuel) (1911-1968) (stories)
- Author of mystery novels under the pseudonym of Ed Lacy. He died in New York City.
- Zindell, David (1952- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/zindell_david
- Zinkiewicz, Lucy (1967-2018) (stories)
- See suebursztynski.blogspot.com/2018/06/vale-lucy-zinkiewicz.html
- Zinos-Amaro, Alvaro (1979- ) (stories) (assoc.)
- See myaineko.blogspot.co.uk
- Zirm, Rudolph W(ilhelm) (1894-1952) (art)
- See pulpartists.com/Zirm.html
- ivko-Clark, Alex (fl. 2010s) (stories)
- See www.thehorrorzine.com/Fiction/Sept2013/Alex/clark.html
- ivković, Zoran (1948- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/zivkovic_zoran
- Zoline, Pamela A. [i.e., Pamela Lifton-Zoline] (1941- ) (stories)
- See www.sf-encyclopedia.com/entry/zoline_pamela
- Zool, M. H.; pseudonym of The Oxford SF Group (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/zool_m_h
- Zorn, Ray H(chkavik) (1910-1997) (stories)
- See alplm-cdi.com/chroniclingillinois/items/show/720
- Zubrin, Robert M. (1952- ) (stories)
- See en.wikipedia.org/wiki/Robert_Zubrin
- Zug, Mark (1959?- ) (art)
- See en.wikipedia.org/wiki/Mark_Zug
- Zumbro, Anna (fl. 2010s) (stories)
- See annazumbro.com
- Zumpe, Lee Clark (fl. 1990s-2010s) (stories) (art)
- See www.leeclarkzumpe.com
- Zvan, Stephanie (fl. 2010s) (stories)
- See uncannymagazine.com/authors/stephanie-zvan
- Zwicker, Richard (fl. 2000s-2010s) (stories)
- See fantasyscrollmag.com/authors/richard-zwicker