| Martin, Ohio | |
| Settlement Type: | Unincorporated community |
| Mapsize: | 250px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Ohio |
| Subdivision Type2: | County |
| Subdivision Type3: | Township |
| Subdivision Name3: | Clay |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 604 |
| Coordinates: | 41.5575°N -83.3367°W |
| Postal Code Type: | ZIP codes |
| Postal Code: | 43445 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1048948 |
Martin is an unincorporated community in northeastern Clay Township, Ottawa County, Ohio, United States. It has a post office with the ZIP code 43445.[1]