Sapphic Adolescent Girls in Irish Young Adult Fiction is the first sustained critical analysis of the representation of sapphic adolescent protagonists in contemporary Irish Young Adult (YA) literature. Ten YA novels published between 2017 and 2023 by both well-established and emerging Irish female authors are examined, analysing sapphic characters to demonstrate how Irish YA literature can transform and re-imagine sapphic literary representations. This book offers a critical evaluation of how lesbianism and bisexuality have been introduced into Irish YA literature, while also addressing the significance of racism, religion, violence against women and girls, friendships, and parental abandonment in shaping queer identities. This study is ideal for postgraduates and academics in the fields of Irish Studies, Cultural Studies, Gender Studies, and Queer Studies, as well as students interested in YA literature, comparative literature, and contemporary literature.