- Yanchus, Andy (1944-2021) (items) (chron.)
- See www.multiversitycomics.com/news/andy-yanchus-obit
- Yandanov, Tsyren (fl. 2020s); used pseudonym DarkFilly (items) (chron.)
- See www.artstation.com/darkfilly/profile
- Yáñez, Alberto (Max) (fl. 2010s) (items) (chron.)
- See www.beneath-ceaseless-skies.com/authors/alberto-yanez/
- Yang, Hannah (fl. 2020s) (items) (chron.)
- See hannahyang.com
- Yang, J. Y. (Neon) (1983- ) (items) (chron.)
- See en.wikipedia.org/wiki/JY_Neon_Yang
- Yang, Nu (fl. 2010s) (items) (chron.)
- See nuyangwriter.wordpress.com
- Yang, Tessa (fl. 2020s) (items) (chron.)
- See www.tessayang.com
- Yang, Wen Yu (fl. 2020s) (items) (chron.)
- See wenyuwrites.wordpress.com
- Yang Wanqing (fl. 2020s) (items) (chron.)
- See clarkesworldmagazine.com/author/yang-wanqing
- Yaniv, Nir (1972- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/yaniv_nir
- Yano, Tetsu; pseudonym of Osamu Sakata (1923-2004) (items) (chron.)
- See www.sf-encyclopedia.com/entry/yano_tetsu
- Yant, Christie (fl. 2010s-2020s) (items) (chron.)
- See inkhaven.net
- Yap, (Victoria) Isabel (Santiago) (1990- ) (items) (chron.)
- See isabelyap.com
- Yarbro, Chelsea Quinn (1942- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/yarbro_chelsea_quinn
- Yardley, Mercedes M. (fl. 2000s-2020s) (items) (chron.)
- See mercedesmyardley.com
- Yarov, Romain (1933-2005) (items) (chron.)
- See archivsf.narod.ru/1933/romen_yarov/index.htm
- Yassin-Kassab, Robin (1969- ) (items) (chron.)
- See qunfuz.com
- Yasuda, Hisaki (1956- ) (items) (chron.)
- See www15.ocn.ne.jp/~h-yasuda
- Yates, Alan Geoffrey (1923-1985) (items) (chron.)
- Earliest books were published as by Peter Carter-Brown, then as by Peter Carter Brown, then as by Carter Brown.
- Yates, Dornford; pseudonym of Cecil William Mercer (1885-1960) (items)
- See en.wikipedia.org/wiki/Dornford_Yates
- Yates, W(illiam) R(olla) (1950- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/yates_w_r
- Yeats, William Butler (1865-1939) (items) (chron.)
- See en.wikipedia.org/wiki/W._B._Yeats
- Yee, Reimena (fl. 2010s) (items) (chron.)
- See reimenayee.com
- Yefremov, Ivan (Antonovich) (1907-1972) (items) (chron.)
- See www.sf-encyclopedia.com/entry/yefremov_ivan
- Yejidé, Morowa (fl. 2020s) (items)
- See www.morowayejide.com
- Yelinek, Kathryn (fl. 2010s-2020s) (items) (chron.)
- See kathrynyelinek.com
- Yellin, Tamar (1963- ) (items) (chron.)
- See en.wikipedia.org/wiki/Tamar_Yellin
- Yellowlees, [Sir] Henry (1919-2006) (items)
- See en.wikipedia.org/wiki/Henry_Yellowlees
- Yelnick, Claude (1923- ) (items)
- See www.sf-encyclopedia.com/entry/yelnick_claude
- Yeowell, Steve (fl. 1980s) (items)
- See en.wikipedia.org/wiki/Steve_Yeowell
- Yep, Laurence (Michael) (1948- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/yep_laurence
- Yerxa, Leroy (Arnold) (1915-1946); used pseudonyms Alexander Blade & Richard Casey (items) (chron.)
- See www.sf-encyclopedia.com/entry/yerxa_leroy
- Yi, Angus (fl. 2010s) (items) (chron.)
- See yichenglong1985.deviantart.com
- Yi, Nu Nu (1957- ) (items)
- See en.wikipedia.org/wiki/Nu_Nu_Yi
- Yi-Sheng, Ng (1980- ) (items) (chron.)
- See en.wikipedia.org/wiki/Ng_Yi-Sheng
- Yngve, A. R. (1969- ) (items) (chron.)
- See aryngve.com
- Yo, Ku Kuru (fl. 2010s) (items) (chron.)
- See kukuruyo.com
- Yoachim, Caroline M. (fl. 2000s-2020s) (items) (chron.)
- See carolineyoachim.com
- Yochelson, Abe (1907-1966) (items) (chron.)
- See tellersofweirdtales.blogspot.com/2023/09/the-eyrie-julyaugust-1923.html
- Yoe, Craig (1951- ) (items)
- See en.wikipedia.org/wiki/Craig_Yoe
- Yohe, John (fl. 2000s-2010s) (items) (chron.)
- See www.johnyohe.com
- Yoke, Carl B(ernard) (1937- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/yoke_carl_b
- Yolen, Jane; [i.e., Jane Hyatt Yolen Stemple] (1939- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/yolen_jane
- Yoon, David (fl. 2020s) (items)
- See www.davidyoon.com
- York, Christina F. (fl. 1990s-2020s) (items) (chron.)
- See www.yorkwriters.com
- York, J(ames) Steven (1957- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/york_j_steven
- Yorkston, Sophie (fl. 2010s-2020s) (items) (chron.)
- See www.smoph.org
- Yoss; pseudonym of José Miguel Sánchez Gómez (1969- ) (items)
- See www.sf-encyclopedia.com/entry/yoss
- You; pseudonym (fl. 1930s) (items) (chron.)
- used by a Yale Record writer/staffer for Real Spicy Horror Tales.
- Youd, C(hristopher) S(amuel) (1922-2012); used pseudonym John Christopher (items) (chron.)
- 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-2020s) (items) (chron.)
- See rioyouers.com
- Youll, Paul (1965- ) (items) (chron.)
- See en.wikipedia.org/wiki/Paul_Youll
- Youll, Stephen (1965- ) (items) (chron.)
- See en.wikipedia.org/wiki/Stephen_Youll
- Young, C(larence) E. (fl. 2010s-2020s); used pseudonym Z. Z. Claybourne (items) (chron.)
- See writeonrighton.com
- Young, Christopher (1958- ) (items)
- See en.wikipedia.org/wiki/Christopher_Young
- Young, D. L. (fl. 2010s) (items) (chron.)
- See dlyoungfiction.com
- Young, Francis Brett (1884-1954) (items)
- Brother of Eric Brett Young.
- Young, Grahaeme Barrasford (fl. 1980s-2010s) (items) (chron.)
- See www.stairwellbooks.co.uk/authors/grahaeme-barrasford-young
- Young, Jim; [i.e., James Maxwell Young] (1951-2012) (items) (chron.)
- See www.sf-encyclopedia.com/entry/young_jim
- Young, Joe (fl. 2010s) (items) (chron.)
- See www.artistjoeyoung.com
- Young, Marty (fl. 2000s-2010s) (items) (chron.)
- See martyyoung.com
- Young, Michael (fl. 2010s) (items) (chron.)
- See www.clippings.me/mdybyu
- Young, Robert F(ranklin) (1915-1986) (items) (chron.)
- See www.sf-encyclopedia.com/entry/young_robert_f
- Young, Stephen (Thomas) (fl. 2010s) (items) (chron.)
- See www.imdb.com/name/nm2978748
- Young, Wile E. (fl. 2010s) (items) (chron.)
- See wileeyoung.blogspot.com/
- Yu, An (fl. 2020s) (items)
- See www.anyuwriting.com
- Yu, Charles (Chokwai) (1976- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/yu_charles