| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
1801  | Shengejuu | Tanzania, Pemba North | locality | S 5° 5′ 0'' | E 39° 50′ 0'' |
1802  | Shengejuu | Tanzania, Pemba North Wete District > Shengejuu | third-order administrative division | S 5° 5′ 5'' | E 39° 48′ 58'' |
| 1803 | Shangani | Tanzania, Zanzibar Urban/West Zanzibar City > Shangani | third-order administrative division | S 6° 9′ 46'' | E 39° 11′ 17'' |
| 1804 | Shamoto | Tanzania, Mbeya | area | S 8° 48′ 0'' | E 33° 50′ 0'' |
| 1805 | Shakani | Tanzania, Zanzibar Urban/West Magharibi > Shakani | third-order administrative division | S 6° 14′ 40'' | E 39° 14′ 18'' |
| 1806 | Shagweragwe | Tanzania, Manyara | area | S 4° 12′ 0'' | E 35° 13′ 0'' |
| 1807 | Shagayu Forest Reserve | Tanzania, Tanga | forest reserve | S 4° 31′ 0'' | E 38° 17′ 0'' |
| 1808 | Shaga | Tanzania, Zanzibar Central/South | locality | S 6° 23′ 0'' | E 39° 29′ 0'' |
1809  | Serama Serama,Seramai,Seremai Hill | Tanzania, Arusha Karatu District > Kansay | hill | S 3° 37′ 0'' | E 35° 35′ 0'' |
| 1810 | Sengerema | Tanzania, Simiyu | area | S 3° 5′ 0'' | E 33° 32′ 0'' |
| 1811 | Sendabarak | Tanzania, Manyara | area | S 4° 29′ 0'' | E 35° 16′ 0'' |
| 1812 | Selegu Selegu | Tanzania, Iringa Kilolo District > Ibumu | mountain elevation 2454m | S 7° 29′ 17'' | E 36° 9′ 20'' |
| 1813 | Segoma Forest Reserve | Tanzania, Tanga | forest reserve | S 4° 58′ 0'' | E 38° 45′ 0'' |
| 1814 | Segisigid | Tanzania, Singida | area | S 4° 40′ 0'' | E 35° 11′ 0'' |
| 1815 | Segala | Tanzania, Dodoma | area | S 5° 33′ 0'' | E 36° 11′ 0'' |
| 1816 | Sebleni | Tanzania, Zanzibar Urban/West Zanzibar City > Sebleni | third-order administrative division | S 6° 9′ 58'' | E 39° 12′ 58'' |
| 1817 | Sawago Forest Reserve | Tanzania, Mbeya | forest reserve | S 9° 1′ 0'' | E 33° 38′ 0'' |
1818  | Lake Savwa | Tanzania, Dodoma | lake | S 5° 34′ 0'' | E 36° 16′ 0'' |
| 1819 | Mwakaje Mwakaje,Saraya | Tanzania, Zanzibar Urban/West Magharibi > Mwakaje | third-order administrative division | S 6° 2′ 26'' | E 39° 15′ 21'' |
| 1820 | Lake Saosa | Tanzania, Njombe | lake | S 8° 39′ 0'' | E 34° 50′ 0'' |
| 1821 | Ras Sangarungu Pagoda Point,Ras Sangarungu | Tanzania, Lindi | point | S 9° 2′ 0'' | E 39° 34′ 0'' |
| 1822 | Sanga Malonse,Molonso,Sanga | Tanzania, Rukwa Nkasi District Council > Mkwamba | hill | S 7° 33′ 0'' | E 31° 24′ 0'' |
| 1823 | Sambasha Local Authority Forest Reserve | Tanzania, Arusha | forest reserve | S 3° 18′ 0'' | E 36° 41′ 0'' |
| 1824 | Sali Forest Reserve | Tanzania, Morogoro | forest reserve | S 8° 55′ 0'' | E 36° 39′ 0'' |
| 1825 | Salanka Mountain Salalanga,Salanga,Salanka Mountain | Tanzania, Dodoma Kondoa District Council > Itololo | hill | S 4° 30′ 0'' | E 35° 46′ 0'' |
| 1826 | Sakila Meru Local Authority Forest Reserve | Tanzania, Arusha | forest reserve | S 3° 21′ 0'' | E 36° 56′ 0'' |
| 1827 | Sakaranyumo Forest Reserve | Tanzania, Njombe | forest reserve | S 9° 51′ 0'' | E 34° 39′ 0'' |
| 1828 | Sahala West Sahala,Sahala Wesi,Sahala West,Wesi | Tanzania, Songwe Mbozi District Council > Igamba | hill | S 8° 57′ 0'' | E 32° 59′ 0'' |
| 1829 | Lake Sagara | Tanzania, Kigoma | lake | S 5° 13′ 44'' | E 31° 6′ 2'' |
1830  | Sadani Saadani,Sadani,Zadani | Tanzania, Pwani Bagamoyo District Council > Mkange | populated place | S 6° 2′ 38'' | E 38° 46′ 32'' |
| 1831 | Sabilo | Tanzania, Manyara | area | S 4° 20′ 0'' | E 35° 29′ 0'' |
| 1832 | Shaurimoyo Saateni,Shaurimoyo | Tanzania, Zanzibar Urban/West Zanzibar City > Shaurimoyo | third-order administrative division | S 6° 9′ 15'' | E 39° 12′ 31'' |
| 1833 | Rwevaguzi Island Dwavagudzi Island,Dwawagudsi-Insel,Rwevaguzi Island | Tanzania, Mwanza | island | S 2° 14′ 0'' | E 32° 4′ 0'' |
| 1834 | Ruvu River Controlled Area | Tanzania, Manyara | reserve | S 4° 15′ 0'' | E 37° 30′ 0'' |
| 1835 | Ruvu Forest Reserve Ruvu Forest Reserve | Tanzania, Morogoro | forest reserve | S 7° 0′ 27'' | E 37° 51′ 55'' |
| 1836 | Rutunguru Katunguru,Rutungura,Rutunguru | Tanzania, Kagera Kyerwa District Council > Rutunguru | populated place | S 1° 13′ 32'' | E 30° 40′ 18'' |
| 1837 | Lake Rushwa | Tanzania, Kagera | lake | S 1° 25′ 26'' | E 30° 49′ 9'' |
| 1838 | Rusenye Point Murumo Point,Rusenye Point,Russenje-Spitze | Tanzania, Mwanza Sengerema District Council > Chifunfu | point | S 2° 23′ 0'' | E 32° 40′ 0'' |
| 1839 | Ruregaja Island Ruregaiya Island,Ruregaja Island,Ruregeja-Insel | Tanzania, Geita | island | S 2° 26′ 0'' | E 32° 0′ 0'' |
| 1840 | Rupiage Forest Reserve Rupiage Forest Reserve | Tanzania, Pwani | forest reserve | S 7° 59′ 21'' | E 38° 34′ 21'' |
| 1841 | Rungwa River Game Reserve | Tanzania, | wildlife reserve | S 7° 15′ 0'' | E 34° 30′ 0'' |
| 1842 | Rungwa River Forest Reserve | Tanzania, Katavi | forest reserve | S 7° 0′ 0'' | E 32° 15′ 0'' |
| 1843 | Rungo Forest Reserve | Tanzania, Lindi | forest reserve | S 9° 22′ 0'' | E 39° 0′ 0'' |
| 1844 | Rungemba | Tanzania, Iringa | area | S 8° 17′ 0'' | E 35° 20′ 0'' |
| 1845 | Rulenge | Tanzania, Kagera Ngara District Council > Rulenge | populated place population 22,069 | S 2° 43′ 3'' | E 30° 37′ 57'' |
| 1846 | Rukwa Rift Valley Rukwa Rift Valley,Rukwa Trough | Tanzania, Rukwa | valley | S 8° 0′ 0'' | E 32° 0′ 0'' |
| 1847 | Ruiga River Forest Reserve | Tanzania, Geita | forest reserve | S 2° 25′ 0'' | E 31° 30′ 0'' |
| 1848 | Ruiga Point Ruega Point,Ruiga Point | Tanzania, Kagera | point | S 2° 0′ 0'' | E 31° 42′ 0'' |
| 1849 | Rufiji River  Lufiji,Mto Rufiji,Rio Rufiji,Rufiji River | Tanzania, Pwani | stream | S 7° 46′ 33'' | E 39° 21′ 9'' |
| 1850 | Rudi Rudi | Tanzania, Dodoma | area | S 7° 0′ 0'' | E 36° 15′ 0'' |
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