The aim is to trace how the ethnonym Kven and the interrelated imagination of Kvenland changed over time in Nordic political discourse from the Viking Age to the mid-eighteenth century. In the negotiations over fixed borders between Sweden, Denmark and Russia, recognition of ethnic groups played an important political role in legitimating the territorial claims of the states. It brought the history of ethnic groups to the table and in the process made visible ethnonyms and names for provinces used previously. The continuity of the ethnonyms is investigated as a chronological chain of communicative and collective memory. The ethnonym and the territory of Kvenland were used by the Norwegians to maintain an ethnic boundary with the Finnish speakers in the upper Bothnian area. The names Kven and Kvenland were never used in Sweden. The investigation shows that the Kvens constituted a group of Finnish speaking people existing in continuity from the Viking Age. Their core territory was situated in the upper Gulf of Bothnia area. When this was integrated into the Swedish kingdom the inhabitants were designated Finns by the Swedes. The Finnish speakers in Tornedalen, thus, kept their linguistic and cultural continuity but lost their western Scandinavian ethnonym Kven.