Identity of Chinese Heritage Language Learners in a Global Era enriches the current research on heritage language (HL) learner identity by examining how identity is constructed, negotiated, and performed in the narratives of university Chinese HL (CHL) learners in Hong Kong. This monograph has identified three sub-categories of CHL learners: domestic-born Chinese, ‘third culture’ Chinese, and overseas Chinese sojourners. Through systematically examining these CHL learners’ life-history narratives about language learning, language use, and social experiences from early childhood to university time, this monograph shows how CHL learner identity is dynamically constructed and changed through self and social positioning across a wide range of spatio-temporal contexts. It also adopts investment, agency, and imagined communities to examine the shared discourses which reflect the relationship between identity and the larger social processes that involve transnational or postcolonial encounters. This monograph contributes to reflections on the emerging discourses of HL learner identity in the context of multilingualism and transnational migration. It challenges the stigmatised image of CHL learners as ‘diasporic subjects’ or ‘language minority students’ in the literature and conceptualises CHL learners as transformative linguistic and social actors in processes of transnational migration and institutional change. This monograph is targeted toward educators, researchers, and professionals working in the fields of heritage language, overseas Chinese studies, migrant studies, and intercultural studies.