Ottar from Hålogaland was a viking adventurer from Hålogaland. Around 890 he traveled to England, and Alfred the Great had his tales written down.

Ottar told that he lived farthest to the north of all the Norwegians. He told about his travels to the White Sea, and south to England, accurately describing the entire Norwegian coast. He told about the Sami people, Swedes and Finns.

Ottars tale is the earliest known written source using the term Norwegians.

Ottar was probably from the island Senja in Troms.