| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Tabbys Delight | city | Maryland | United States | 39.57 | -76.88 | 830 | |
| Tabernacle | city | Maryland | United States | 38.78 | -76.56 | 3 | |
| Tailwinds Estates | city | Maryland | United States | 39.68 | -75.97 | 380 | |
| Takoma Park | city | Maryland | United States | 38.98 | -77.01 | 196 | |
| Talbert (historical) | city | Maryland | United States | 38.73 | -76.83 | 200 | |
| Talbot Mobile Home Park | city | Maryland | United States | 38.81 | -76.05 | 49 | |
| Talbot Village | city | Maryland | United States | 38.79 | -76.07 | 49 | |
| Talbott Springs | city | Maryland | United States | 39.21 | -76.85 | 396 | |
| Talbotts Choice | city | Maryland | United States | 39.45 | -76.63 | 830 | |
| Tall Oak Manor | city | Maryland | United States | 39.52 | -76.44 | 393 | |
| Tall Oaks | city | Maryland | United States | 38.75 | -76.60 | 98 | |
| Tall Pines Trailer Park | city | Maryland | United States | 39.14 | -76.75 | 203 | |
| Tall Timbers | city | Maryland | United States | 38.17 | -76.54 | 6 | |
| Tall Timbers | city | Maryland | United States | 39.05 | -76.61 | 147 | |
| Tall Timbers Estates | city | Maryland | United States | 39.07 | -76.01 | 49 | |
| Tall Timbers Park | city | Maryland | United States | 38.33 | -75.63 | 26 | |
| Tameron Hall | city | Maryland | United States | 38.90 | -76.59 | 59 | |
| Tammany Manor | city | Maryland | United States | 39.61 | -77.79 | 830 | |
| Tanager Forest | city | Maryland | United States | 39.05 | -76.64 | 111 | |
| Taneytown | city | Maryland | United States | 39.66 | -77.17 | 830 | |
| Tanglewood | city | Maryland | United States | 39.00 | -76.44 | 0 | |
| Tanglewood | city | Maryland | United States | 38.39 | -75.17 | 13 | |
| Tanglewood | city | Maryland | United States | 38.58 | -76.54 | 98 | |
| Tanglewood | city | Maryland | United States | 39.04 | -76.48 | 98 | |
| Tannery | city | Maryland | United States | 39.57 | -76.95 | 830 | |
| Tantallon | city | Maryland | United States | 38.72 | -77.01 | 49 | |
| Tantallon Hills | city | Maryland | United States | 38.71 | -77.01 | 144 | |
| Tantallon North | city | Maryland | United States | 38.73 | -77.02 | 49 | |
| Tantallon South | city | Maryland | United States | 38.72 | -76.99 | 196 | |
| Tantallon Square | city | Maryland | United States | 38.73 | -77.00 | 75 | |
| Tanterra | city | Maryland | United States | 39.17 | -77.07 | 830 | |
| Tanyard | city | Maryland | United States | 38.75 | -75.98 | 19 | |
| Tanyard Estates | city | Maryland | United States | 38.72 | -75.98 | 19 | |
| Tappers Corner | city | Maryland | United States | 38.89 | -75.96 | 49 | |
| Tara | city | Maryland | United States | 39.70 | -75.79 | 200 | |
| Tara | city | Maryland | United States | 38.95 | -76.64 | 98 | |
| Tara Oaks | city | Maryland | United States | 39.55 | -76.95 | 830 | |
| Tarrington Creek | city | Maryland | United States | 38.61 | -77.01 | 147 | |
| Tarson Manor | city | Maryland | United States | 39.48 | -77.12 | 830 | |
| Tarton Hill | city | Maryland | United States | 39.38 | -76.46 | 98 | |
| Tarzan Forest | city | Maryland | United States | 38.95 | -76.58 | 6 | |
| Taskers Chance | city | Maryland | United States | 39.42 | -77.44 | 331 | |
| Tates Bank | city | Maryland | United States | 38.56 | -76.04 | 3 | |
| Taylor | city | Maryland | United States | 39.58 | -76.52 | 830 | |
| Taylor Heights | city | Maryland | United States | 39.49 | -77.69 | 400 | |
| Taylor Landing | city | Maryland | United States | 38.08 | -75.37 | 3 | |
| Taylors Choice | city | Maryland | United States | 39.69 | -76.92 | 830 | |
| Taylors Island | city | Maryland | United States | 38.47 | -76.30 | 3 | |
| Taylors Landing | city | Maryland | United States | 39.50 | -77.77 | 337 | |
| Taylorsville | city | Maryland | United States | 39.46 | -77.09 | 830 | |
| Taylorville | city | Maryland | United States | 38.36 | -75.17 | 3 |