Cultural Linguistics, as a relatively recent multidisciplinary field of inquiry, aims to explore the interrelationship between human languages and cultural conceptualizations. Despite the body of research on cultural conceptualization in L1, the analysis of English language teaching (ELT) textbooks through a Cultural Linguistics lens has remained underexplored. This chapter aims to explore the cultural conceptualization of women's beauty in three global ELT textbook series, namely Top Notch series (four volumes), Summit (two volumes), and American English File (six volumes). The chapter describes the various conceptions of beauty and reviews the strand of inquiry into women’s beauty in various cultures and languages. Next, it reports on how women's beauty is conceptualized in the three global ELT textbooks from a Cultural Linguistics perspective. The analysis of these 12 volumes shows that the concept of women’s beauty is conceptualized in two main categories: women’s physical features and women’s clothing. In view of these findings, implications for the ELT curriculum are proposed, and areas for future research on beauty in ELT textbooks are suggested.