The concept of Global Englishes (GE) redefines English as a pluralistic and dynamic entity shaped by sociocultural contexts worldwide, challenging traditional native-speaker norms. This study explores the historical, sociopolitical, and linguistic dimensions of GE, focusing on its implications for English language education and policy in Thailand. Thai English, a localized variety influenced by Thai linguistic and cultural norms, exemplifies how non-native speakers creatively adapt English to suit local communicative needs. Key linguistic features of Thai English, including distinct pronunciation patterns, lexical innovations, grammatical adaptations, and discourse strategies, reflect the intersection of global and local influences. The study critiques Thailand’s traditional English language teaching (ELT) models, which often privilege Standard English over localized varieties, thereby marginalizing linguistic diversity and limiting students’ communicative competence in global contexts. This paper advocates for integrating diverse English varieties into curricula, enhancing teacher training programs to include GE pedagogy, and promoting multilingualism through inclusive language policies. Emphasizing linguistic diversity and intercultural competence, the study also underscores the need for public awareness campaigns and sustained research to transform societal attitudes and institutional practices. By embracing Global Englishes, Thailand can align its language education policies with the realities of global communication, empowering learners to navigate multicultural contexts confidently. Such an approach contributes to social equity, intercultural understanding, and the development of a more inclusive and globally relevant educational framework.