Prince Gustav may refer to: Gustav of Sweden (1568–1607), son of Eric XIV Gustav, Prince of Vasa (1799–1877), son of Gustav IV Adolf of Sweden Prince Gustaf, Duke of Uppland (1827–1852), son of Oscar I of Sweden Prince Gustav of Thurn and Taxis (1848–1914) Prince Gustav of Denmark (1887–1944), son of Frederick VIII Prince Gustav of Thurn and Taxis (1888–1919) Prince Gustaf Adolf, Duke of Västerbotten (1906–1947) Gustav, 7th Prince of Sayn-Wittgenstein-Berleburg, (born 1969)