what language do the vikings speak?
Answer by Circle91. Confidence votes 91. They spoke Old Norse which was an ancient Germanic language from the North Germanic branch. It was closely related to Old English and was the language whence the modern Scandinavian languages (Swedish, Danish, Norwegian, Icelandic and Faroese) sprang.Like most ancient Indo-European languages it was heavily inflected retaining much of the ancient fusional morphology.t was closely related to Old English and was the language whence the modern Scandinavian languages (Swedish, Danish, Norwegian, Icelandic and Faroese) sprang.