| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
801  | Dunes de Tarka Dunes de Tarka,Dunes de Yourka,Grandes Dunes de Yourka | Chad, | dune(s) | N 20° 20′ 0'' | E 16° 0′ 0'' |
802  | Tari Tari,Tarik,Tary | Chad, Moyen-Chari | populated place | N 10° 5′ 31'' | E 17° 28′ 26'' |
| 803 | Tarangara Talangoro,Talongara,Tarangara | Chad, Moyen-Chari | populated place | N 9° 36′ 29'' | E 18° 19′ 40'' |
| 804 | Taouan Taouan,Taouane,Taoun,Tauan | Chad, Chari-Baguirmi | populated place | N 10° 23′ 42'' | E 16° 27′ 44'' |
| 805 | Tangala Tangala,Tangata,Tangla | Chad, Moyen-Chari | populated place | N 10° 22′ 8'' | E 17° 53′ 15'' |
| 806 | Manda Manda,Tanda,Tarda | Chad, Moyen-Chari | populated place | N 9° 14′ 32'' | E 18° 25′ 10'' |
| 807 | Tamertiou Tamertiou,Tameurtiou | Chad, Tibesti | mountain | N 20° 55′ 0'' | E 16° 44′ 0'' |
| 808 | Takalaou Takalao,Takalaou,Takalo | Chad, Salamat | populated place | N 10° 11′ 5'' | E 19° 49′ 5'' |
| 809 | Tagal I Tagal,Tagal I,Togal | Chad, Mayo-Kebbi Est | populated place | N 9° 33′ 57'' | E 15° 17′ 0'' |
| 810 | Tagalé Tagale,Tagalé,Taghala,Taguel,Taguilet | Chad, Guéra | populated place | N 11° 35′ 33'' | E 18° 47′ 9'' |
811  | Tâdi | Chad, Moyen-Chari | area | N 10° 16′ 29'' | E 19° 29′ 18'' |
| 812 | Suni Sounni,Suni,Sunni | Chad, Tibesti | mountain | N 20° 16′ 0'' | E 16° 24′ 0'' |
| 813 | Dordom Soutoa Dordom,Dordom Soutoa,Soutoa | Chad, Kanem | populated place | N 13° 27′ 30'' | E 15° 34′ 5'' |
| 814 | Souri Wachielam | Chad, Barh el Gazel | area | N 15° 24′ 32'' | E 17° 41′ 31'' |
| 815 | Soulou | Chad, | area | N 14° 38′ 37'' | E 17° 41′ 58'' |
| 816 | Somo Sommo,Somo,Sono | Chad, Guéra | populated place | N 11° 46′ 0'' | E 17° 58′ 0'' |
| 817 | Somgué Somge,Somgue,Somgué,Somgé,Somla | Chad, Mayo-Kebbi Est | populated place | N 9° 43′ 8'' | E 14° 58′ 26'' |
| 818 | Solafou Solafou,Solafou Locoum,Solafou Lokoum | Chad, Batha | dune(s) | N 15° 15′ 40'' | E 18° 29′ 4'' |
| 819 | Siniga | Chad, Borkou | area | N 18° 46′ 45'' | E 17° 53′ 33'' |
| 820 | Singuière Singiere,Singière,Singuiere,Singuière | Chad, Guéra | hill | N 11° 12′ 41'' | E 17° 45′ 1'' |
| 821 | Sibangra Si-Nbangra,Sibangra | Chad, Logone Oriental | populated place | N 8° 5′ 17'' | E 16° 18′ 27'' |
| 822 | Simé Gotobé Sime Godobe,Sime Gotobe,Simma,Simme,Simmé,Simé Godobé,Simé Gotobé | Chad, Moyen-Chari | populated place | N 9° 37′ 14'' | E 18° 33′ 20'' |
| 823 | Ehi Sigerda Ehi Seurguidda,Ehi Sigerda | Chad, Tibesti | mountain | N 21° 52′ 0'' | E 15° 29′ 0'' |
| 824 | Sidi Aïdao | Chad, Tibesti | area | N 22° 31′ 0'' | E 16° 55′ 0'' |
| 825 | Siagon Bekesabon,Bekesabou,Békésabon,Sagon,Siagon | Chad, Logone Oriental | populated place | N 7° 51′ 5'' | E 16° 59′ 28'' |
| 826 | Senédébé | Chad, Tibesti | area | N 20° 12′ 0'' | E 16° 53′ 0'' |
| 827 | Sénatat | Chad, Batha | area | N 14° 6′ 20'' | E 18° 18′ 30'' |
| 828 | Séméguin Semegin,Semeguin,Semeguine,Sémégin,Séméguin | Chad, Tandjilé | populated place | N 10° 0′ 33'' | E 16° 20′ 12'' |
| 829 | Seïté Seita,Seite,Seitla,Seïta,Seïté | Chad, Chari-Baguirmi | populated place | N 11° 21′ 51'' | E 16° 31′ 4'' |
| 830 | Sadao Saadou,Sadao,Sadaou,Sadou | Chad, Chari-Baguirmi | populated place | N 11° 23′ 4'' | E 16° 39′ 59'' |
| 831 | Sada Sada,Souada,Sourda | Chad, Kanem | populated place | N 14° 10′ 47'' | E 14° 28′ 51'' |
| 832 | Roufou Boufou,Bufu,Roufou,Rufu | Chad, Mayo-Kebbi Est | populated place | N 10° 50′ 0'' | E 15° 22′ 0'' |
833  | Roudolo | Chad, Lac | lake | N 13° 36′ 3'' | E 15° 2′ 48'' |
| 834 | Rémélia | Chad, Barh el Gazel | area | N 14° 52′ 47'' | E 17° 26′ 2'' |
| 835 | Régasa Regasa,Riguera,Rigueza,Régasa | Chad, Kanem | populated place | N 14° 14′ 24'' | E 14° 18′ 5'' |
| 836 | Ragabta Matari | Chad, Batha | area | N 15° 9′ 56'' | E 18° 56′ 33'' |
| 837 | Poudoué Podoe,Podoue,Podoué,Podoé,Poudoue,Poudoué | Chad, Mayo-Kebbi Ouest | populated place | N 9° 33′ 42'' | E 14° 19′ 37'' |
| 838 | Peleu Peleu,Polo | Chad, Logone Oriental | populated place | N 8° 4′ 3'' | E 16° 39′ 20'' |
| 839 | Pitipiti Kanhia,Kanta,Pitipita,Pitipiti | Chad, Mayo-Kebbi Est | populated place | N 9° 41′ 2'' | E 15° 9′ 29'' |
| 840 | Fandjalla Fandjalla,Pandjala,Panjala,Penkela | Chad, Guéra | populated place | N 11° 7′ 36'' | E 18° 20′ 27'' |
| 841 | Pelko Belka,Belko,Pelko | Chad, Mandoul | populated place | N 8° 25′ 54'' | E 17° 47′ 55'' |
| 842 | Pié Pe,Pie,Pié,Pé | Chad, Logone Occidental | populated place | N 8° 57′ 59'' | E 16° 29′ 18'' |
| 843 | Palalao Palalao,Patala,Patalao | Chad, Mayo-Kebbi Est | populated place | N 9° 51′ 48'' | E 15° 16′ 1'' |
| 844 | Pandzangué Pandzange,Pandzangue,Pandzangue I,Pandzangué,Pandzangé | Chad, Logone Oriental | populated place | N 7° 56′ 21'' | E 15° 47′ 17'' |
| 845 | Pala Oua Pala,Pala Oua | Chad, Mayo-Kebbi Ouest | populated place | N 9° 21′ 7'' | E 14° 58′ 3'' |
| 846 | Pala Pala,Palla,Пала | Chad, Mayo-Kebbi Est | populated place | N 11° 1′ 54'' | E 15° 18′ 4'' |
| 847 | Ehi Oyé Ehi Oye,Ehi Oyé,Ehi Yey,Massif de l'Eiyey,Massif de l’Eïyey | Chad, Tibesti | mountain | N 20° 51′ 0'' | E 17° 33′ 0'' |
| 848 | Ousadou Ousa,Ousadou | Chad, Hadjer-Lamis | sand area | N 13° 22′ 22'' | E 15° 13′ 37'' |
| 849 | Ourounangué Ourounang,Ourounange,Ourounangue,Ourounangué,Ourounangé | Chad, Chari-Baguirmi | populated place | N 11° 1′ 17'' | E 16° 4′ 29'' |
| 850 | Ouroula | Chad, Hadjer-Lamis | lake | N 12° 44′ 45'' | E 14° 39′ 33'' |
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