Dawson was born at Bradford Royal Infirmary in West Yorkshire.<ref>{{cite book|last=Kay|first=Adam|author-link=Adam Kay (writer)|date=2020|title=Dear NHS 100 Stories to say Thank You |chapter=Juno Dawson|publisher=Orion Publishing Group, Limited |isbn=978-1-3987-0118-2}}</ref> Dawson lived in [[Bingley]] and was educated at [[Bingley Grammar School]].<ref name=Gendergames>{{cite book| author=Juno Dawson|title=The Gender Games| year=2017}}</ref><ref name="hogan">{{cite news|last1=Hogan|first1=Michael|title=Juno Dawson: 'Teenagers have seen things that would make milk curdle'|url=https://www.theguardian.com/books/2018/apr/01/juno-dawson-clean-interview-transgender-anorexia-drugs|access-date=3 May 2019|work=[[The Guardian]]|date=1 April 2018}}</ref> After graduating from [[Bangor University]],<ref name=Gendergames/> shehe worked as a primary school teacher and later became a [[Personal, Social, Health and Economic (PSHE) education|PSHE]] co-ordinator.<ref name="armstrong">{{cite news |last1=Armstrong |first1=Rebecca |title=Juno Dawson on sex education: 'Nobody had thought to tell these young people that sex was pleasurable' |url=https://inews.co.uk/news/education/juno-dawson-young-adult-fiction-sex-education/ |access-date=3 May 2019 |work=[[i (newspaper)|i]] |date=20 April 2018}}</ref> While working as a teacher, she began writing books aimed at [[Young adult fiction|young adults]] and became successful enough to leave her job.<ref name=":0">{{Cite news|url=https://www.heraldscotland.com/life_style/arts_ents/15314005.transition-exhausting-no-one-trendy-author-juno-dawson-new-book-gender-games/|title='Transition is exhausting. No-one does it to be trendy': Author Juno Dawson on her new book The Gender Games|last=Taylor|first=Marianne|date=28 May 2017|work=The Herald|access-date=31 July 2017}}</ref> She wrote a number of young adult fiction books including ''Hollow Pike'' and ''Say Her Name''.<ref name=":1">{{Cite news|url=http://www.pinknews.co.uk/2015/10/24/international-best-selling-author-comes-out-as-transgender/|title=International best selling author comes out as transgender|last=Williams|first=Joe|date=24 October 2015|work=Pink news|access-date=31 July 2017}}</ref> Her books often feature [[LGBT]] people, and Dawson has advocated for other books to feature more prominent LGBT characters.<ref>{{Cite news|url=https://www.telegraph.co.uk/books/authors/james-dawson-cassandra-clare-gay-ya/|title=James Dawson: 'Young Adult literature should celebrate being gay'|last=Hawkes|first=Rebecca|date=24 July 2015|work=The Telegraph|access-date=31 July 2017}}</ref>
In 2014, Dawson received the [[The Book People#Queen of Teen award winners|Queen of Teen award]].<ref name="eyre" /><ref>{{cite news |last1=Kelly |first1=Caitlin |title=Queen of Teen dethroned |url=https://www.theguardian.com/books/childrens-books-site/2016/feb/11/queen-of-teen-dethroned |work=The Guardian |date=11 February 2016}}</ref>