| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
1551  | Troan Troan,Troane,Troané | Chad, Ouadaï | populated place | N 13° 46′ 38'' | E 21° 31′ 59'' |
1552  | Ouadi Tousa Ouadi Tousa,Ouadi Touza,wady twst,wady twzt,وادي توزة,وادي توسة,وادي طوزة | Chad, Ouadaï | wadi | N 13° 5′ 21'' | E 21° 34′ 53'' |
| 1553 | Tourguéssi Tourgesi,Tourguessi,Tourguéssi,Tourgési | Chad, Wadi Fira | populated place | N 14° 54′ 0'' | E 21° 6′ 0'' |
| 1554 | Toukoul Toukouli Tokol-Toukouli,Toukoul Toukouli | Chad, Ouadaï | populated place | N 13° 18′ 46'' | E 22° 13′ 39'' |
| 1555 | Touhanga Touango,Touhanga | Chad, Sila | populated place | N 12° 0′ 0'' | E 22° 13′ 0'' |
| 1556 | Touar Toror,Touar | Chad, Salamat | populated place | N 11° 13′ 49'' | E 20° 12′ 18'' |
| 1557 | Torbossoulé Torbosoule,Torbosoulé,Torbossoule,Torbossoulé | Chad, Wadi Fira | populated place | N 14° 45′ 13'' | E 21° 49′ 41'' |
| 1558 | Torbikin Torbikin,Tourbouguine | Chad, Ouadaï | populated place | N 14° 2′ 25'' | E 20° 55′ 55'' |
| 1559 | Ouadi Torbo Ouadi Torba,Ouadi Torbo,Oued Torbo | Chad, Ennedi-Ouest | wadi | N 17° 20′ 41'' | E 21° 23′ 26'' |
| 1560 | Toumbouloum Tomboulou,Toumbouloum | Chad, Wadi Fira | populated place | N 14° 40′ 45'' | E 21° 4′ 33'' |
1561  | Hadjer Tollo Djebel Tolelo,Hadjer Tollo | Chad, Wadi Fira | hill | N 15° 33′ 0'' | E 21° 46′ 0'' |
| 1562 | Hadjer Tourkokop Hadjer Tokourkop,Hadjer Tourkokop | Chad, Wadi Fira | hill | N 14° 49′ 15'' | E 21° 9′ 6'' |
| 1563 | Tokolon Tokolom,Tokolon | Chad, Ouadaï | populated place | N 13° 55′ 38'' | E 21° 19′ 49'' |
| 1564 | Tirlili Tirlili,Tirtili | Chad, Ouadaï | populated place | N 13° 31′ 20'' | E 21° 41′ 28'' |
| 1565 | Tirti Tirti,trty,ترتي | Chad, Ouadaï | populated place | N 13° 20′ 14'' | E 21° 57′ 1'' |
| 1566 | Hadjer Diringa Hadjer Diringa,Hadjer Tiringa | Chad, Wadi Fira | hill | N 14° 42′ 55'' | E 21° 21′ 13'' |
| 1567 | Wādī Umm Hājar Bili Tinga,Oued Oum Hadjer,Wadi Umm Hadschar,Wadi Umm Hagar,Wadi Umm Hajar,Wādī Umm Hādschar,Wādī Um... | Chad, Ennedi-Ouest | well | N 16° 23′ 58'' | E 21° 4′ 21'' |
| 1568 | Tiling Tiling,Tilling | Chad, Ouadaï | populated place | N 13° 28′ 36'' | E 21° 59′ 2'' |
| 1569 | Teouel Teouel,Tewel,Téwel | Chad, Wadi Fira | populated place | N 14° 28′ 49'' | E 21° 28′ 21'' |
| 1570 | Tésou Kébir Tesou Kebir,Tesso,Tésou Kébir | Chad, Sila | populated place | N 12° 14′ 0'' | E 21° 45′ 0'' |
| 1571 | Hadjer Teri Hadjer Ter,Hadjer Teri | Chad, Wadi Fira | hill | N 14° 28′ 46'' | E 20° 49′ 41'' |
| 1572 | Hadjer Terfi Hadjer Terfi,hjr trfy,حجر ترفي | Chad, Ouadaï | hill | N 13° 30′ 39'' | E 21° 4′ 57'' |
| 1573 | Téouangué Teouange,Teouangue,Téouangué,Téouangé | Chad, Ouadaï | populated place | N 13° 55′ 18'' | E 21° 40′ 29'' |
| 1574 | Tengarissé Tengarise,Tengarisse,Tengarissé,Tengarisé | Chad, Sila | populated place | N 12° 14′ 0'' | E 21° 35′ 0'' |
| 1575 | Ténériguinèz Teneriginez,Teneriguinez,Ténériginèz,Ténériguinèz | Chad, Ouadaï | populated place | N 13° 50′ 5'' | E 21° 28′ 10'' |
| 1576 | Tédji Teddji,Tedji,Tédji | Chad, Sila | populated place | N 11° 46′ 47'' | E 21° 27′ 20'' |
| 1577 | Tazéré Tajere,Tajéré,Tazere,Tazéré | Chad, Wadi Fira | populated place | N 14° 47′ 11'' | E 20° 43′ 0'' |
| 1578 | Tatiné Tatine,Tatiné,tatyny,تاتيني | Chad, Ouadaï | populated place | N 13° 28′ 37'' | E 21° 5′ 15'' |
| 1579 | Tarré Tarre,Tarré,Tore,Toré | Chad, Sila | populated place | N 11° 33′ 0'' | E 22° 32′ 0'' |
| 1580 | Hadjer el Tarboul Hadjer el Tarboul,Pic de Tarboul | Chad, Wadi Fira | hill | N 15° 57′ 0'' | E 21° 42′ 0'' |
| 1581 | Hadjer Tanièrfa Hadjer Tanierfa,Hadjer Tanièrfa | Chad, Salamat | hill | N 11° 38′ 44'' | E 22° 3′ 22'' |
| 1582 | Hadjer Tamiala Hadjer Tamiala,Hagar Tamiala | Chad, Ennedi-Est | hill | N 15° 45′ 0'' | E 23° 19′ 0'' |
| 1583 | Tamadal Houmélan Tamadal Houmelan,Tamadal Houmelane,Tamadal Houmélan | Chad, Ouadaï | populated place | N 13° 38′ 30'' | E 20° 18′ 54'' |
| 1584 | Hadjer Takéram Hadjer Takeram,Hadjer Takéram | Chad, Salamat | hill elevation 555m | N 11° 9′ 48'' | E 22° 17′ 7'' |
| 1585 | Tafok Bara Tafok Bara,Tafok Barra | Chad, Salamat | populated place | N 9° 54′ 42'' | E 20° 52′ 51'' |
| 1586 | Taéhon Taehon,Taeon,Taéhon,Taéon | Chad, Wadi Fira | populated place | N 14° 24′ 48'' | E 21° 2′ 19'' |
| 1587 | Souguin Sougin,Souguin | Chad, Ouadaï | populated place | N 13° 56′ 40'' | E 21° 6′ 15'' |
| 1588 | Sobi Sobi,Zobi | Chad, Ouadaï | populated place | N 13° 34′ 56'' | E 21° 58′ 23'' |
| 1589 | Soba Soba | Chad, Wadi Fira | populated place | N 15° 22′ 0'' | E 21° 47′ 0'' |
| 1590 | Siref Siraf,Siref | Chad, Ouadaï | populated place | N 13° 40′ 50'' | E 21° 17′ 7'' |
| 1591 | Sira Sira,syra,سيرا | Chad, Ouadaï | populated place | N 13° 31′ 7'' | E 21° 46′ 26'' |
| 1592 | Goz Sibitri Goz Sibitri,Goz Siptiri | Chad, Wadi Fira | dune(s) | N 14° 47′ 18'' | E 21° 13′ 26'' |
| 1593 | Ouadi Sini Ouadi Sini,Oued Sini,Wadi Sini | Chad, Ennedi-Ouest | wadi | N 16° 48′ 59'' | E 21° 42′ 2'' |
| 1594 | Singila Singila,Singuila | Chad, Sila | populated place | N 11° 25′ 54'' | E 22° 30′ 20'' |
| 1595 | Singuiling Singiling,Singuiling | Chad, Sila | hills | N 11° 53′ 15'' | E 21° 14′ 12'' |
| 1596 | Hadjer Sina Hadjer Sina,Sinna | Chad, Wadi Fira | hill | N 14° 25′ 45'' | E 20° 50′ 53'' |
| 1597 | Hadjer Serde China Hadjer Serde China,Serde China,Serdé China | Chad, Ennedi-Est | hills | N 16° 50′ 35'' | E 23° 45′ 35'' |
| 1598 | Sémeskoul Semeskoul,Simeskol,Sémeskoul | Chad, Wadi Fira | populated place | N 14° 3′ 0'' | E 22° 5′ 0'' |
| 1599 | Séïfou Seifou,Seifu,Séïfou | Chad, Salamat | populated place | N 11° 14′ 41'' | E 21° 40′ 20'' |
| 1600 | Séhep Cehep,Sehep,Séhep | Chad, Salamat | populated place | N 11° 14′ 9'' | E 20° 34′ 38'' |
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