| Official Name: | Saint Marys, Indiana |
| Pushpin Map: | Indiana#USA |
| Pushpin Label: | Saint Marys |
| Pushpin Label Position: | top |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Floyd |
| Subdivision Type3: | Township |
| Subdivision Name3: | Lafayette |
| Coordinates: | 38.3558°N -85.8647°W |
| Elevation Ft: | 827 |
| Postal Code Type: | ZIP code |
| Postal Code: | 47119 |
| Blank Name: | FIPS code |
| Blank Info: | 18-67086[1] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 442688 |
Saint Marys is an unincorporated community in Lafayette Township, Floyd County, Indiana.