Pomors or Pomory (помо́ры, seasiders) are an ethnographic group descended from Russian settlers, primarily from Veliky Novgorod, living on the White Sea coasts and the territory whose southern border lies on a watershed which separates the White Sea river basin from the basins of rivers that flow south.
As early as the 12th century, explorers from Novgorod entered the White Sea through the Northern Dvina, Mezen, Pechora and Onega estuaries and founded settlements along the sea coasts of Bjarmaland. Kholmogory served as their chief town until the rise of Arkhangelsk in the late 16th century. From their base at Kola, they explored the Barents Region and the Kola peninsula and Novaya Zemlya.
Later the Pomor discovered and maintained the Northern Sea Route between Arkhangelsk and Siberia. With their ships (koches), the Pomors penetrated to the trans-Ural areas of Northern Siberia, where they founded the settlement of Mangazeya east of the Yamal Peninsula in the early 16th century. Tatyana Bratkova has reported that some historians speculate that in the early 17th century, Pomors settled the isolated village of Russkoye Ustye in the delta of the Indigirka, in north-eastern Yakutia.
The name of the Pomors derives from the Pomorsky (literally, "maritime") coast of the White Sea (between Onega and Kem), having the root of more (море, meaning "sea"; derived from an Indo-European root). The same root appears in the toponym Pomerania (Polish: Pomorze) and Armorica (Gaulish: Aremorica) and also in the Gaulish ethnonym Morini.
The term Pomor, which in the 10th–12th centuries meant "a person who lived near sea", gradually was extended into one to apply to this population living relatively far away from the sea. Finally in the 15th century, the people became disconnected from the sea. The sea was not a major part of economy of this region. At the same time, people began using the term Pomor'e to refer to a territory of practically the whole European Russian North, including the Murmansk, Arkhangelsk and Vologda regions; and Karelia and Komi republics.