This study examines the critiques of the global spread of English, that is, criticisms of the socio-political and linguistic impact of English spread, and investigates their theoretical, sociolinguistic, and pedagogical implications for non-English speaking countries. Firstly, it inspects Phillipson's (1992) theory of linguistic imperialism and the key issues in his account: the spread of English in relation to cultural imperialism, inequality, and the ELT industry. Then, it further discusses the critique of the effect of English on language death and language change. The third section assesses the notion of English as a so-called 'killer language' while Section Four explores the development of New Englishes, and the concept of the ownership of English claimed by non-native English users.