Oranienbaum may refer to:
Germany Oranienbaum, Germany, a town in Saxony-Anhalt, Germany Oranienbaum-Wörlitz
Russia Oranienbaum, Russia (), a Russian royal residence Lomonosov, Russia ( Oranienbaum-Lomonosov), the former name of the adjacent town Oranienbaum Bridgehead Battle of Narva (1944) or Oranienbaum Offensive