Kleinburg is an unincorporated village in the city of Vaughan, Ontario, Canada. It is home to the McMichael Canadian Art Collection, a major art gallery, and the Kortright Centre for Conservation. In 2001, the village and its surrounding communities had a population of 4,595; the village itself has 282 dwellings, with a population of 952. Kleinburg comprises a narrow section of hilly landscape situated between two branches of the Humber river.