Frederick Francis II was a Prussian officer and Grand Duke of Mecklenburg-Schwerin from 7 March 1842 until 15 April 1883.

The Grand Duchy of Mecklenburg-Schwerin was a territory in Northern Germany held by the House of Mecklenburg residing at Schwerin. It was a sovereign member state of the German Confederation and became a federated state of the North German Confederation and finally of the German Empire in 1871.