| Official Name: | Shellytown, Pennsylvania |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Pennsylvania#USA |
| Pushpin Label: | Shellytown |
| Pushpin Label Position: | top |
| Coordinates: | 40.4092°N -78.2106°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Pennsylvania |
| Subdivision Type2: | County |
| Subdivision Name2: | Blair |
| Subdivision Type3: | Township |
| Subdivision Name3: | Woodbury |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 0.35 |
| Area Land Km2: | 0.35 |
| Area Water Km2: | 0.0 |
| Population As Of: | 2020 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 1060 |
| Postal Code Type: | ZIP Code |
| Postal Code: | 16693 (Williamsburg) |
| Area Code: | 814/582 |
| Blank Name: | FIPS code |
| Blank Info: | 42-70032 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2805560 |
Shellytown is an unincorporated community and census-designated place (CDP) in Blair County, Pennsylvania, United States. It was first listed as a CDP prior to the 2020 census.
The CDP is in eastern Blair County, in the southeastern part of Woodbury Township. It is bordered to the west by Clover Creek, a north-flowing tributary of the Frankstown Branch Juniata River. Clover Creek Road is the main street in the community, leading north 4miles to Williamsburg and southwest 8miles to Fredericksburg.