I went to wiktionary.org to check which languages that have a name for Finland related to "Finland" rather than "Suomi" or something else spell it with 2 n rather than 1.
Finnland: German, Old Norse, Faroese, Icelandic
Finnia: Latin (alternatively also Finlandia, with 1 n)
an Fhionnlainn: Scottish Gaelic (alternatively also Suòmaidh)
@anke also, in English the people are called Finns and the adjective is Finnish, not Fins and Finish. English is in the wrong here
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