| Frog Mortar Creek | |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Maryland |
| Subdivision Type4: | District |
| Subdivision Name4: | Baltimore County |
| Source1 Coordinates: | 39.3436°N -76.3994°W |
| Source1 Elevation: | 30feet |
| Mouth: | Middle River (Maryland) |
| Mouth Coordinates: | 39.3103°N -76.4044°W |
| Mouth Elevation: | 0feet |
Frog Mortar Creek is a tidal creek in Baltimore County, Maryland.[1] The creek empties into the Middle River and surrounds the northeast and southeast sides of Martin State Airport.