Louise of Prussia may refer to:Princess Louise of Prussia (1770–1836), daughter of Prince Augustus Ferdinand of Prussia Queen Louise of Prussia (1776–1810), queen consort of Prussia by marriage to King Frederick William III Princess Louise of Prussia (1808–1870), daughter of King Frederick William III Princess Louise of Prussia (1829–1901), daughter of Prince Charles of Prussia and landgravine consort of Alexis, Landgrave of Hesse-Philippsthal-Barchfeld Princess Louise of Prussia (1838–1923), daughter of William I, German Emperor and King of Prussia and grand duchess consort of Frederick I, Grand Duke of Baden Princess Louise Margaret of Prussia (1860–1917), daughter of Prince Frederick Charles of Prussia