The Routledge Handbook of Arabic Sociolinguistics comprises 22 chapters encompassing various aspects in the study of Arabic dialects within their sociolinguistic context. This is a novel volume, which not only includes the traditional topics in variationist sociolinguistics, but also links the sociolinguistic enterprise to the history of Arabic and to applications of sociolinguistics beyond the theoretical treatment of variation. Newly formed trends, with an eye to future research, form the backbone of this volume. With contributions from an international pool of researchers, this volume will be of interest to scholars and students of Arabic sociolinguistics, as well as to linguists interested in a concise, rounded view of the field.