Duke of Nericia

Duke of Nericia or Duke of Närke may refer to:
Prince Carl, Duke of Nericia 1560-1604 (also of Södermanland and Värmland), then King Carl IX of Sweden
Prince Carl Philip, Duke of Nericia 1607-1618 (also of Södermanland and Värmland)
Prince Eugen, Duke of Nericia 1865-1947