The Commemorative medal of the Mexico Expedition was a French commemorative campaign medal established by decree of French Emperor Napoleon III on 29 August 1863 to recognize military service during the 1862-1863 French intervention in Mexico.

François Achille Bazaine was an officer of the French army. Rising from the ranks, during four decades of distinguished service under Louis-Philippe and then Napoleon III, he held every rank in the army from fusilier to Marshal of France, the latter in 1863.