Princess Frederica 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
• Frederica Louisa of Hesse-Darmstadt (1751–1805), queen consort and second wife of King Frederick William II of Prussia
• 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
• 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 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

Princess Friederike may refer to:

• 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
• 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 Friederike of Schleswig-Holstein-Sonderburg-Beck (1780–1862), daughter of Friedrich Karl Ludwig, Duke of Schleswig-Holstein-Sonderburg-Beck
• Princess Friederike of Schleswig-Holstein-Sonderburg-Glücksburg (1811–1902), daughter of Duke Friedrich Wilhelm of Schleswig-Holstein-Sonderburg-Glücksburg

• Caroline of Baden, Frederica Caroline Wilhelmina, Electress and later first Queen of Bavaria
• Friederike of Hanover (disambiguation)

This disambiguation page lists articles associated with the title Princess Frederica.
If an internal link led you here, you may wish to change the link to point directly to the intended article.