The Institute for the Languages of Finland is the largest Nordic lexicographical research centre that compiles both normative and descriptive dictionaries.

Dictionary of Swedish Dialects in Finland

Ordbok över Finlands svenska folkmål (Dictionary of Swedish Dialects in Finland) describes the vocabulary of the Swedish dialects spoken in the regions of Ostrobothnia, Åboland, the Åland Islands and Uusimaa. The dictionary has been compiled since 1959 and was originally published as booklets. Since the early 1990s, it has been published in 624-page books, each comprising 16,000–17,000 entries. The total number of entries is approximately 120,000. Since 2013, the dictionary has also been available online.

Ordbok över Finlands svenska folkmål