Basler may refer to:

• an inhabitant or native of canton of Basel-Stadt, or canton of Basel-Landschaft, or Basel, Switzerland
• Basler (fashion), German fashion brand
• Basler (weapon), the German term for the baselard dagger
• Basler Electric, a manufacturer of power systems
• Mario Basler, (born 1968), a German former footballer
• Roy Basler, (1906-1989), American historian
• Basler BT-67, a remanufactured DC-3 aircraft produced by Basler Turbo Conversions