Fennoscandia (Finnish, Swedish and Norwegian: Fennoskandia; Russian: Фенноскандия, romanized: Fennoskandiya), or the Fennoscandian Peninsula, is a peninsula in Europe which includes the Scandinavian and Kola peninsulas, mainland Finland, and Karelia.

[1] Administratively, this roughly encompasses the mainlands of Finland, Norway and Sweden,[2] as well as Murmansk Oblast, much of the Republic of Karelia, and parts of northern Leningrad Oblast in Russia.

Its name comes from the Latin words Fennia (Finland) and Scandia (Scandinavia).

[3] The term was first used by the Finnish geologist Wilhelm Ramsay in 1898.

Both terms are sometimes used in English to refer to a cultural or political grouping of Finland with Sweden, Norway and Denmark (the latter country is closely connected culturally and politically, but is not part of the Fennoscandian Peninsula), which is a subset of the Nordic countries.