Queen Frederica

Queen Frederica or Queen Frederika may refer to:


 * Frederica Louisa of Hesse-Darmstadt (1751–1805), Queen of Prussia
 * Frederica of Mecklenburg-Strelitz (1778–1841), Queen of Hanover
 * Frederica of Baden (1781–1826), Queen of Sweden
 * Frederica of Hanover (1917–1981), Queen of the Hellenes
 * SS Queen Frederica, a Chandris Line cruise ship