"In Finland one speaks Finnish and Swedish."

Translation: I Finland snakker man finsk og svensk.

[renska]

Can you say, "I Finland, man snakker..."

[Deliciae]

No, the verb needs to be the second element in the sentence.

You may see sentence structures like the one you're proposing in poetry or song lyrics, but that's a case of poetic license and does not sound natural in regular speech.

[fveldig]

Additionally, the comma after Finland would be considered a grammatical mistake.