Princess Frederica, Princess Friederike or Princess Frederika may refer to:
Princess Frederica Amalia of Denmark (1649–1704), duchess consort of Holstein-Gottorp, wife of Duke Christian Albrecht of Holstein-Gottorp Princess Friederike Luise of Prussia (1714–1784), daughter of King Frederick William I of Prussia and wife of Karl Wilhelm Friedrich, margrave of Brandenburg-Ansbach Frederica Louisa of Hesse-Darmstadt (1751–1805), queen consort and second wife of King Frederick William II of Prussia Princess Friederike of Hesse-Darmstadt (1752–1782), daughter of Landgrave George William of Hesse-Darmstadt and wife of Charles II, grand duke of Mecklenburg-Strelitz Princess Frederica Charlotte of Prussia (1767–1820), daughter of King Frederick William II of Prussia and wife of Prince Frederick, Duke of York and Albany Frederica of Mecklenburg-Strelitz (1778–1841), wife of King Ernest Augustus I of Hanover Princess Friederike of Schleswig-Holstein-Sonderburg-Beck (1780–1862), daughter of Friedrich Karl Ludwig, Duke of Schleswig-Holstein-Sonderburg-Beck Frederica of Baden (1781–1826), queen consort of King Gustav IV Adolf of Sweden Princess Frederica of Prussia (1796–1850), daughter of Prince Louis Charles of Prussia and wife of Leopold IV, Duke of Anhalt-Dessau Princess Friederike of Schleswig-Holstein-Sonderburg-Glücksburg (1811–1902), daughter of Duke Friedrich Wilhelm of Schleswig-Holstein-Sonderburg-Glücksburg Princess Frederica of Hanover (1848–1926), daughter of George V of Hanover and wife of Baron Alfons von Pawel-Rammingen Frederica of Hanover (1917–1981), queen consort of King Paul of Greece
See also Caroline of Baden, Frederica Caroline Wilhelmina, Electress and later first Queen of Bavaria Friederike of Hanover (disambiguation)