Frederick Louis

Frederick Louis may refer to:
 * Frederick Louis, Count of Nassau-Ottweiler
 * Frederick Louis, Count Palatine of Zweibrücken
 * Frederick Louis, Hereditary Grand Duke of Mecklenburg-Schwerin
 * Frederick Louis, Prince of Hohenlohe-Ingelfingen
 * Frederick Louis, Prince of Wales
 * Frederick Charles Louis, Duke of Schleswig-Holstein-Sonderburg-Beck
 * Frederick Louis, Duke of Schleswig-Holstein-Sonderburg-Beck
 * Frederick Louis of Württemberg (heir apparent)
 * Frederick Louis of Württemberg-Winnental