This book explores the growing influence of the role of social media in reshaping English Language Teaching and Learning (ELTL) across diverse educational contexts. With the rise of digital-native learners, social media platforms such as YouTube, TikTok, Instagram, X Facebook and WhatsApp have transformed how English is taught and acquired across formal and informal settings. The chapter discusses the pedagogical potential and challenges of integrating these tools into English classrooms, supported by relevant theoretical perspectives and global case studies. Emphasis is placed on how social media fosters learner autonomy, communicative competence and engagement through multimodal, collaborative, and interactive learning environments. The chapter also offers practical pedagogical strategies for English educators and concludes by identifying future research directions in this rapidly evolving field.