Hamilton Township is a rural township located in Northumberland County in central Ontario.

It surrounds the Town of Cobourg.

The township was named after Henry Hamilton, Lieutenant-Governor of Quebec from 1782 to 1785.

In the 2021 Census of Population conducted by Statistics Canada, Hamilton Township had a population of 11,059 living in 4,281 of its 4,685 total private dwellings, a change of 1.1% from its 2016 population of 10,942.

This Ontario location article is a stub.