Kleinburg is an unincorporated village in the city of Vaughan, Ontario, Canada. It is home to the McMichael Canadian Art Collection, an art gallery with a focus on the Group of Seven, and the Kortright Centre for Conservation.
Kleinburg comprises a narrow section of hilly landscape situated between two branches of the Humber River. The historic village is bounded by Highway 27 on the west and Stegman’s Mill Road to the east. Kleinburg has subsumed the nearby hamlet of Nashville.