| Mary D | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | USA Pennsylvania#USA |
| Pushpin Map Caption: | Location within the state of Pennsylvania |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Pennsylvania |
| Subdivision Type2: | County |
| Subdivision Name2: | Schuylkill |
| 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: | 906 |
| Coordinates: | 40.76°N -76.0561°W |
| Postal Code Type: | ZIP codes |
| Postal Code: | 17952 |
| Area Code: | 570 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1180517 |
Mary D is an unincorporated community and coal town in Schuylkill County, Pennsylvania, United States. It is located in Schuylkill Township on U.S. Route 209 and the Schuylkill River forms its natural southeastern boundary.
The community derives its name from Mary Delores Dodson, the wife of a local mine owner.[1]