| Official Name: | Hamilton |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Indiana#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | St. Joseph |
| Subdivision Type3: | Township |
| Subdivision Name3: | Olive |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 758 |
| Coordinates: | 41.7322°N -86.4781°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 46552 |
| Area Code: | 574 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 452615 |
Hamilton is an unincorporated community in Olive Township, St. Joseph County, in the U.S. state of Indiana.
Hamilton was originally called Terre Coupee, and under the latter name was platted in 1837.[1] The name of Hamilton comes from Hamilton's Tavern the community once contained. A post office opened under the name Terre Coupee in 1831, and remained in operation until it was discontinued in 1893.[2]