| Hamilton | |
| Official Name: | Township of Hamilton |
| Settlement Type: | Township (lower-tier) |
| Motto: | By land and water we flourish |
| Flag Size: | 120x100px |
| Pushpin Map: | CAN ON Northumberland#Canada Southern Ontario |
| Coordinates: | 44.05°N -91°W |
| Subdivision Name: | Canada |
| Subdivision Type1: | Province |
| Subdivision Type2: | County |
| Established Title: | Settled |
| Established Date: | 1791 |
| Established Title2: | Incorporated |
| Established Date2: | 1850 |
| Government Type: | Township |
| Leader Title: | Mayor |
| Leader Name: | Scott Jibb |
| Leader Title1: | Federal riding |
| Leader Title2: | Prov. riding |
| Area Land Km2: | 256.08 |
| Population As Of: | 2016 |
| Population Footnotes: | [1] |
| Population Total: | 10942 |
| Population Density Km2: | 42.7 |
| Utc Offset: | -5 |
| Utc Offset Dst: | -4 |
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 living in of its total private dwellings, a change of from its 2016 population of . With a land area of 256.03km2, it had a population density of in 2021.[2]
Mother tongue:[3]