| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Thea | city | Dytiki Ellada | Greece | 38.17 | 21.71 | 830 | 28204 |
| Thealos | city | Attiki | Greece | 38.31 | 23.82 | 311 | 8222 |
| Thebae | city | Sterea Ellada | Greece | 38.32 | 23.32 | 830 | 19079 |
| Theben | city | Sterea Ellada | Greece | 38.32 | 23.32 | 830 | 19079 |
| Thebes | city | Sterea Ellada | Greece | 38.32 | 23.32 | 830 | 19079 |
| Theiorycheia | city | Notio Aigaio | Greece | 36.70 | 24.53 | 830 | 1715 |
| Theiorycheio | city | Notio Aigaio | Greece | 36.70 | 24.53 | 830 | 1715 |
| Theisóa | city | Dytiki Ellada | Greece | 37.51 | 21.96 | 2043 | 808 |
| Themelo | city | Ipeiros | Greece | 39.26 | 20.53 | 62 | 3255 |
| Theodhoraiika | city | Peloponnisos | Greece | 38.06 | 22.61 | 830 | 7492 |
| Theodhoraki | city | Kentriki Makedonia | Greece | 40.95 | 22.19 | 1952 | 1931 |
| Theodhorakion | city | Kentriki Makedonia | Greece | 40.95 | 22.19 | 1952 | 1931 |
| Theodhorion | city | Kentriki Makedonia | Greece | 41.24 | 22.95 | 830 | 1715 |
| Theodhorovon | city | Kentriki Makedonia | Greece | 41.24 | 22.95 | 830 | 1715 |
| Theodhosia | city | Kentriki Makedonia | Greece | 40.99 | 23.13 | 2509 | 1214 |
| Theodhóra | city | Kriti | Greece | 35.34 | 24.86 | 1669 | 3102 |
| Theodhóriana | city | Ipeiros | Greece | 39.44 | 21.21 | 2890 | 743 |
| Theodora | city | Kriti | Greece | 35.34 | 24.86 | 1669 | 3102 |
| Theodorakeio | city | Kentriki Makedonia | Greece | 40.95 | 22.19 | 1952 | 1931 |
| Theodorakeion | city | Kentriki Makedonia | Greece | 40.95 | 22.19 | 1952 | 1931 |
| Theodoraíika | city | Peloponnisos | Greece | 38.06 | 22.61 | 830 | 7492 |
| Theodoraíika | city | Ipeiros | Greece | 39.35 | 21.06 | 1669 | 1652 |
| Theodoreika | city | Peloponnisos | Greece | 38.06 | 22.61 | 830 | 7492 |
| Theodoreio | city | Kentriki Makedonia | Greece | 41.24 | 22.95 | 830 | 1715 |
| Theodoreion | city | Kentriki Makedonia | Greece | 41.24 | 22.95 | 830 | 1715 |
| Theodorianá | city | Kriti | Greece | 35.37 | 23.60 | 1122 | 1019 |
| Theodorovon | city | Kentriki Makedonia | Greece | 41.24 | 22.95 | 830 | 1715 |
| Theodorákion | city | Kentriki Makedonia | Greece | 40.95 | 22.19 | 1952 | 1931 |
| Theodosia | city | Kentriki Makedonia | Greece | 40.99 | 23.13 | 2509 | 1214 |
| Theodóriana | city | Ipeiros | Greece | 39.44 | 21.21 | 2890 | 743 |
| Theoktisto | city | Peloponnisos | Greece | 37.80 | 22.13 | 3362 | 1078 |
| Theoktiston | city | Peloponnisos | Greece | 37.80 | 22.13 | 3362 | 1078 |
| Theologos | city | Sterea Ellada | Greece | 38.65 | 23.19 | 236 | 2949 |
| Theologos | city | Sterea Ellada | Greece | 38.49 | 23.80 | 1095 | 801 |
| Theológos | city | Anatoliki Makedonia kai Thraki | Greece | 40.66 | 24.69 | 1669 | 2136 |
| Theológos | city | Notio Aigaio | Greece | 36.37 | 28.04 | 95 | 6344 |
| Theopetra | city | Thessalia | Greece | 39.67 | 21.68 | 830 | 5094 |
| Theotókos | city | Anatoliki Makedonia kai Thraki | Greece | 41.26 | 24.80 | 1669 | 878 |
| Theotókos | city | Ipeiros | Greece | 40.24 | 20.87 | 2509 | 402 |
| Theotókos | city | Thessalia | Greece | 39.85 | 21.61 | 2509 | 1192 |
| Therakisio | city | Ipeiros | Greece | 39.51 | 20.86 | 2509 | 3035 |
| Therapeio | city | Anatoliki Makedonia kai Thraki | Greece | 41.58 | 26.19 | 157 | 1887 |
| Therapeión | city | Anatoliki Makedonia kai Thraki | Greece | 41.58 | 26.19 | 157 | 1887 |
| Therapion | city | Anatoliki Makedonia kai Thraki | Greece | 41.58 | 26.19 | 157 | 1887 |
| Therapió | city | Anatoliki Makedonia kai Thraki | Greece | 41.58 | 26.19 | 157 | 1887 |
| Therasia | city | Notio Aigaio | Greece | 36.44 | 25.34 | 925 | 663 |
| Theriakisi | city | Ipeiros | Greece | 39.51 | 20.86 | 2509 | 3035 |
| Theriakísio | city | Ipeiros | Greece | 39.51 | 20.86 | 2509 | 3035 |
| Theriakísio | city | Dytiki Ellada | Greece | 39.08 | 21.20 | 2027 | 969 |
| Theriakísion | city | Ipeiros | Greece | 39.51 | 20.86 | 2509 | 3035 |
| Theriakísion | city | Dytiki Ellada | Greece | 39.08 | 21.20 | 2027 | 969 |
| Theriano | city | Dytiki Ellada | Greece | 38.14 | 21.63 | 301 | 9489 |
| Therianopoulo | city | Kriti | Greece | 35.21 | 25.57 | 2509 | 2975 |
| Therianopoulon | city | Kriti | Greece | 35.21 | 25.57 | 2509 | 2975 |
| Therianón | city | Dytiki Ellada | Greece | 38.14 | 21.63 | 301 | 9489 |
| Theriko | city | Attiki | Greece | 37.73 | 24.05 | 3 | 11776 |
| Therinon | city | Thessalia | Greece | 39.36 | 21.50 | 3349 | 937 |
| Therinó | city | Thessalia | Greece | 39.36 | 21.50 | 3349 | 937 |
| Therisa | city | Kriti | Greece | 35.41 | 23.98 | 1873 | 2303 |
| Theriso | city | Kriti | Greece | 35.41 | 23.98 | 1873 | 2303 |
| Therisson | city | Kriti | Greece | 35.41 | 23.98 | 1873 | 2303 |
| Therissos | city | Kriti | Greece | 35.33 | 25.12 | 203 | 78622 |
| Therissó | city | Kriti | Greece | 35.33 | 25.12 | 203 | 78622 |
| Theristra | city | Attiki | Greece | 38.18 | 23.41 | 1167 | 1888 |
| Thermai Ano | city | Anatoliki Makedonia kai Thraki | Greece | 41.36 | 24.97 | 1935 | 2656 |
| Thermaí Káto | city | Anatoliki Makedonia kai Thraki | Greece | 41.35 | 24.98 | 1856 | 2774 |
| Thermia | city | Notio Aigaio | Greece | 37.42 | 24.43 | 830 | 1013 |
| Thermia | city | Notio Aigaio | Greece | 36.37 | 25.43 | 830 | 9476 |
| Thermisia | city | Peloponnisos | Greece | 37.41 | 23.32 | 0 | 611 |
| Thermon | city | Dytiki Ellada | Greece | 38.57 | 21.67 | 1669 | 3439 |
| Thermopigi | city | Kentriki Makedonia | Greece | 41.27 | 23.36 | 830 | 5143 |
| Thermopilai | city | Sterea Ellada | Greece | 38.80 | 22.54 | 351 | 4623 |
| Thermopiles | city | Sterea Ellada | Greece | 38.80 | 22.54 | 351 | 4623 |
| Thermopiyi | city | Kentriki Makedonia | Greece | 41.27 | 23.36 | 830 | 5143 |
| Thermopylai | city | Sterea Ellada | Greece | 38.80 | 22.54 | 351 | 4623 |
| Thermopylen | city | Sterea Ellada | Greece | 38.80 | 22.54 | 351 | 4623 |
| Thermopyles (Thermopylen) | city | Sterea Ellada | Greece | 38.80 | 22.54 | 351 | 4623 |
| Thermopýles | city | Sterea Ellada | Greece | 38.80 | 22.54 | 351 | 4623 |
| Thermá | city | Kentriki Makedonia | Greece | 40.90 | 23.56 | 246 | 5087 |
| Thermá Loutrá | city | Anatoliki Makedonia kai Thraki | Greece | 40.88 | 26.05 | 396 | 2186 |
| Thermí | city | Voreio Aigaio | Greece | 39.18 | 26.49 | 167 | 13088 |
| Thespiae | city | Sterea Ellada | Greece | 38.30 | 23.15 | 961 | 8155 |
| Thespiai | city | Sterea Ellada | Greece | 38.30 | 23.15 | 961 | 8155 |
| Thespies | city | Sterea Ellada | Greece | 38.30 | 23.15 | 961 | 8155 |
| Thesprotikon | city | Ipeiros | Greece | 39.25 | 20.79 | 157 | 4008 |
| Thesprotikó | city | Ipeiros | Greece | 39.25 | 20.79 | 157 | 4008 |
| Thessalonica | city | Kentriki Makedonia | Greece | 40.64 | 22.93 | 0 | 599404 |
| Thessalonika | city | Kentriki Makedonia | Greece | 40.64 | 22.93 | 0 | 599404 |
| Thessalonique | city | Kentriki Makedonia | Greece | 40.64 | 22.93 | 0 | 599404 |
| Thessaloníki | city | Kentriki Makedonia | Greece | 40.64 | 22.93 | 0 | 599404 |
| Thessaloníkē | city | Kentriki Makedonia | Greece | 40.64 | 22.93 | 0 | 599404 |
| Theszaloníki | city | Kentriki Makedonia | Greece | 40.64 | 22.93 | 0 | 599404 |
| Thetidio | city | Thessalia | Greece | 39.37 | 22.52 | 1200 | 901 |
| Thetídhion | city | Thessalia | Greece | 39.37 | 22.52 | 1200 | 901 |
| Thetídion | city | Thessalia | Greece | 39.37 | 22.52 | 1200 | 901 |
| Theólogos | city | Peloponnisos | Greece | 37.14 | 22.45 | 2509 | 7550 |