This dissertation, "Andean Spanish in Peru: Acquisition, Variation and Change in the Speech of Huancayo," focuses on the maintenance of Andean Spanish, a linguistic variety spoken on the Peruvian Andes, which is the result of centuries of interaction between Spanish and Quechua societies. The importance of my research lies in the awareness that global processes are changing and restructuring the ways in which Andean people, a historical marginalized social group in Peru, develop and construct a range of new global identities, while still preserving their local ones. Using a qualitative and quantitative approach, the analysis explores the effects of social factors upon language use and the maintenance or loss of Quechua features in the language and culture of the Andean city of Huancayo. / Spanish