Legion of Honor or Legion of Honour can refer to:

• The Légion d'honneur, one of the highest decorations awarded by France
• The Palais de la Légion d'Honneur , a building in Paris constructed as a tribute to the members of the Légion d'honneur
• The California Palace of the Legion of Honor fine art museum in San Francisco, whose building is based upon the Paris Palais de la Légion d'honneur