This collection of original contributions dealing with Hispanic contact linguistics covers an array of Spanish dialects distributed across North, South, and Central America, the Caribbean, the Iberian Peninsula, and the Bosporus. It deals with both native and non-native varieties of the language, and includes both synchronic and diachronic studies. The volume addresses, and challenges, current theoretical assumptions on the nature of language variation and contact-induced change through empirically-based linguistic research. The sustained contact between Spanish and other languages in different parts of the world has given rise to a wide number of changes in the language, which are driven by a concomitance of different linguistic and social processes. This collection of articles provides new insight into such phenomena across the Spanish-speaking world.