This special issue of the Nordic Journal of Linguistics is devoted to receptive multilingualism (RM), and includes papers presented in the conference Receptive Multilingualism: Multilingual Resources in the Service of Mutual Understanding, held at the University of Eastern Finland, Joensuu, in 2015. RM refers to a language contact situation in which hearers’ or readers’ understanding of a non-native language is based on their skills in either their first language or languages that they have learned later in life. In such situations comprehension can be based on linguistic similarity of the languages, on acquired knowledge of the languages, or both. A particular characteristic of RM is its emphasis on receptive language skills: the hearer or the reader does not necessarily actively command the language they are able to understand. In its most interactive form RM refers to a situation in which every conversation participant can use their native language and be understood by the others.