Euphemia of Sweden
Euphemia Eriksdotter (c. 1317–1363/1370) was a Swedish princess, daughter of Duke Eric Magnusson of Södermanland and Ingeborg of Norway, and younger sister of King Magnus Eriksson. She married Albert II of Mecklenburg at Rostock in 1336, becoming duchess consort.
She kept real political weight in Sweden, and in 1340–1341 persuaded Magnus to renew Norwegian trading privileges for Rostock and Wismar. In 1357 she gave estates to Skänninge Abbey, and her son Albert became king of Sweden in 1364.