This volume is a selection of twenty peer-reviewed articles first presented at the 41st annual Linguistic Symposium on Romance Languages (LSRL), held at the University of Ottawa in 2011. They are thematically linked by a broad notion of variation across languages, dialects, speakers, time, linguistic contexts, and communicative situations. Furthermore, the articles address common theoretical and empirical issues from different formal, experimental, or corpus-based perspectives. The languages analyzed belong to the main members of the Romance family, Spanish, Portuguese, Catalan, French, Ladin, Italian, Sardinian, and Romanian, and a variety of topics across a wide spectrum of linguistic subfields, from phonetics to semantics, as well as historical linguistics, bilingualism and second-language learning, is covered. By illustrating the richness and complementarity of subjects, methods, and theoretical frameworks explored within Romance linguistics, significant contributieons are made to both the documentation of Romance languages and to linguistic theory.