Language ideology is a social practice which has entered into literary discourse. This paper explores the theme of language ideological practices in Samuel Selvon‟s The Lonely Londoners in order to identify the language ideological blocs and describe the practice of language ideology in the text, as well as explain the link between language ideology and social identity. The paper adopted the descriptive research method and drew on corpus from the primary text, while discussion of the corpus was done using the conceptual framework of language ideology and M.A.K. Halliday‟s social semiotic view of language. The paper found two competing language ideologies being practiced in different ways by the participants and showed that there is a strong correlation between language ideology and social identity in the novel.