Louise of Prussia (in German Luise von Preußen) can refer to several different members of the Prussian royalty.
- Princess Louise Dorothea of Prussia (1680 - 1705), daughter of Frederick I of Prussia
- Princess Louise Ulrika of Prussia (1720 - 1782), daughter of Frederick William I of Prussia and wife of Adolf Frederick of Sweden
- Princess Louise of Prussia (1770 - 1836), daughter of Prince Augustus Ferdinand of Prussia and wife of Prince Anton Radziwill
- Queen Louise of Prussia (1776 - 1810), daughter of Charles II, Grand Duke of Mecklenburg-Strelitz and wife of Frederick William III of Prussia
- Princess Louise of Prussia (1808 - 1870), daughter of Frederick William III of Prussia and wife of Prince Frederick of the Netherlands
- Princess Louise of Prussia (1829 - 1901), daughter of Prince Charles of Prussia and wife of Alexis, Landgrave of Hesse-Philippsthal-Barchfeld
- Princess Louise of Prussia (1838 - 1923), daughter of William I of Prussia (later German Emperor) and wife of Frederick I, Grand Duke of Baden
- Princess Louise Margaret of Prussia (1860 - 1917), daughter of Prince Frederick Charles of Prussia and wife of Prince Arthur, Duke of Connaught
- Princess Victoria Louise of Germany (1892 - 1980), daughter of William II, German Emperor and wife of Ernest Augustus, Duke of Brunswick
