In this article, we argue that within multilingual polities, whether national or transnational, multilingual parties are all-things-considered more desirable than monolingual parties operating via a lingua franca. First, we develop a taxonomy of what we believe are the main ideal-type models of “linguistic democracy,” that is, of the relationship between language and democracy in multilingual polities. Second, we argue that multilingual parties are in a better position than monolingual parties to formulate conceptions of the common good that take into account diverse linguistic and epistemic perspectives. Third, we claim that such parties can perform an educational role for their members and for citizens in general, by making them aware of the implications of linguistic diversity for democratic life. Fourth, we argue that multilingual parties can offer a linkage between citizens and government via forms of intraparty deliberation that are rendered more inclusive and democratic by the use of multiple languages.