| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
1951  | Rwenjojo | Tanzania, Kagera | locality | S 1° 34′ 8'' | E 31° 6′ 27'' |
1952  | Lake Moye | Tanzania, Kigoma | lake | S 4° 27′ 19'' | E 30° 20′ 7'' |
| 1953 | Lake Musimu | Tanzania, Kigoma | lake | S 4° 28′ 8'' | E 30° 20′ 48'' |
| 1954 | Zulani | Tanzania, Pemba North | locality | S 4° 58′ 0'' | E 39° 46′ 0'' |
1955  | Muyuni A Muyuni A,Ziwani | Tanzania, Zanzibar Central/South Kusini > Muyuni A | third-order administrative division | S 6° 20′ 34'' | E 39° 27′ 16'' |
| 1956 | Kwaalinatu Holmwood,Kwaalinatu,Ziwani | Tanzania, Zanzibar Urban/West Zanzibar City > Kwaalinatu | third-order administrative division | S 6° 10′ 12'' | E 39° 12′ 16'' |
| 1957 | Ziwani Mivumoishirini,Mivumoishuni,Ziwani | Tanzania, Pemba South Chake Chake District > Ziwani | third-order administrative division | S 5° 10′ 38'' | E 39° 45′ 54'' |
1958  | Ziragura Island Siragura-Insel,Ziragura Island | Tanzania, Mwanza | island | S 2° 14′ 0'' | E 32° 20′ 0'' |
| 1959 | Zingwezingwe Zingwe Zingwe,Zingwezingwe | Tanzania, Zanzibar North Kaskazini B > Zingwezingwe | third-order administrative division | S 6° 0′ 13'' | E 39° 13′ 27'' |
| 1960 | Zinge Local Authority Forest Reserve | Tanzania, Tanga | forest reserve | S 4° 47′ 0'' | E 38° 19′ 0'' |
| 1961 | Zegi | Tanzania, Kigoma | locality | S 5° 8′ 0'' | E 31° 8′ 0'' |
| 1962 | Zanzuzi Sansui,Zanzui,Zanzuzi | Tanzania, Simiyu Itilima District Council > Zagayu | hill | S 2° 56′ 0'' | E 33° 49′ 0'' |
| 1963 | Zandawa | Tanzania, Dodoma | area | S 5° 55′ 0'' | E 36° 17′ 0'' |
| 1964 | Zagilwa | Tanzania, Dodoma | area | S 5° 31′ 0'' | E 36° 5′ 0'' |
| 1965 | Yowela | Tanzania, Mbeya | area | S 8° 45′ 0'' | E 33° 52′ 0'' |
| 1966 | Yombi Island Jombe Island,Yambi Island,Yombi Island | Tanzania, Pemba South Mkoani District > Kisiwa Panza | island | S 5° 27′ 38'' | E 39° 39′ 49'' |
| 1967 | Yodzu Island Jodsu-Insel,Yodzu Island | Tanzania, Mwanza | island | S 2° 13′ 0'' | E 32° 17′ 0'' |
| 1968 | Yiomata | Tanzania, Singida | area | S 4° 3′ 0'' | E 35° 1′ 0'' |
| 1969 | Yarugu Island Vyaruguru Rocks,Yarugu Island | Tanzania, Mwanza | island | S 2° 27′ 0'' | E 33° 11′ 0'' |
| 1970 | Yambe Island  Jambe Island,Kisiwa cha Yambe,Yambe Island | Tanzania, Tanga | island | S 5° 6′ 43'' | E 39° 9′ 32'' |
| 1971 | Jalumba Jalumba,Yalumba | Tanzania, Dodoma Mpwapwa District Council > Massa | hill | S 7° 0′ 0'' | E 36° 18′ 0'' |
| 1972 | Wingwi Mapofu Kinazini,Wingwi,Wingwi Mapofu | Tanzania, Pemba North Micheweni District > Wingwi Mapofu | third-order administrative division | S 5° 0′ 48'' | E 39° 48′ 15'' |
| 1973 | Lake W. Heckmann | Tanzania, Mbeya | lake | S 9° 1′ 0'' | E 33° 33′ 0'' |
| 1974 | West Kilombero Scarp Forest Reserve West Kilombero Scarp Forest Reserve | Tanzania, Iringa | forest reserve | S 7° 49′ 0'' | E 36° 35′ 20'' |
| 1975 | Wawi | Tanzania, Pemba South Chake Chake District > Wawi | third-order administrative division | S 5° 14′ 20'' | E 39° 47′ 54'' |
| 1976 | Watta Forest Reserve | Tanzania, Dodoma | forest reserve | S 6° 40′ 0'' | E 36° 18′ 0'' |
| 1977 | Wambaa | Tanzania, Pemba South Mkoani District > Wambaa | third-order administrative division | S 5° 17′ 58'' | E 39° 40′ 59'' |
| 1978 | Wala River Forest Reserve | Tanzania, Tabora | forest reserve | S 5° 45′ 0'' | E 32° 20′ 0'' |
| 1979 | Walahu | Tanzania, Manyara | area | S 4° 13′ 0'' | E 35° 20′ 0'' |
1980  | Vyeru Veru,Vyeru,Werro,Weru | Tanzania, Tanga Mkinga District Council > Kwale | populated place | S 4° 57′ 0'' | E 39° 8′ 0'' |
| 1981 | Vuo Kilui,Kirui,Vuo | Tanzania, Tanga Mkinga District Council > Moa | populated place | S 4° 48′ 0'' | E 39° 9′ 0'' |
| 1982 | Vumba | Tanzania, Pemba South | locality | S 5° 16′ 0'' | E 39° 42′ 0'' |
| 1983 | Vitongoji Vitangoge,Vitongoge,Vitongoji | Tanzania, Pemba South Chake Chake District > Vitongoji | populated place | S 5° 13′ 51'' | E 39° 49′ 14'' |
| 1984 | Vitongoji Vitongoge,Vitongoji | Tanzania, Pemba South Chake Chake District > Vitongoji | third-order administrative division | S 5° 13′ 14'' | E 39° 49′ 50'' |
| 1985 | Vikokotoni Mtendeni,Vikokotoni | Tanzania, Zanzibar Urban/West Zanzibar City > Vikokotoni | third-order administrative division | S 6° 9′ 45'' | E 39° 11′ 43'' |
| 1986 | Vikindu Forest Reserve Vikindu Forest Reserve | Tanzania, Pwani | forest reserve | S 6° 59′ 0'' | E 39° 17′ 0'' |
| 1987 | Vigoza F.R. | Tanzania, Morogoro | forest reserve | S 7° 3′ 20'' | E 37° 35′ 3'' |
| 1988 | Vigoregore Forest Reserve | Tanzania, Morogoro | forest reserve | S 7° 19′ 23'' | E 37° 51′ 22'' |
| 1989 | Victoria Gardens | Tanzania, Zanzibar Urban/West | park | S 6° 10′ 0'' | E 39° 11′ 0'' |
| 1990 | Viberewere | Tanzania, Dodoma | area | S 6° 34′ 0'' | E 36° 31′ 0'' |
| 1991 | Uzungwa Scarp Forest Reserve | Tanzania, Morogoro | forest reserve | S 8° 20′ 0'' | E 35° 58′ 0'' |
| 1992 | Uzini | Tanzania, Zanzibar Central/South Kati > Uzini | third-order administrative division | S 6° 4′ 38'' | E 39° 19′ 56'' |
| 1993 | Uzigua Forest Reserve | Tanzania, Pwani | forest reserve | S 5° 58′ 0'' | E 38° 4′ 0'' |
| 1994 | Uzi | Tanzania, Zanzibar Central/South Kati > Uzi | third-order administrative division | S 6° 19′ 37'' | E 39° 23′ 29'' |
| 1995 | Uyui Kigwa Rubuga Forest Reserve | Tanzania, Tabora | forest reserve | S 5° 5′ 0'' | E 33° 15′ 0'' |
| 1996 | Mkwajuni Mkwajuni,Uyago,Uyagu | Tanzania, Zanzibar North Kaskazini A > Mkwajuni | third-order administrative division | S 5° 53′ 10'' | E 39° 17′ 13'' |
| 1997 | Uvinza Forest Reserve | Tanzania, Kigoma | forest reserve | S 5° 10′ 0'' | E 30° 20′ 0'' |
| 1998 | Uvinje | Tanzania, Zanzibar North | locality | S 5° 48′ 0'' | E 39° 13′ 0'' |
| 1999 | Uvanga | Tanzania, Tabora | locality | S 5° 0′ 0'' | E 32° 15′ 0'' |
| 2000 | Uungwe | Tanzania, Pemba South | locality | S 5° 21′ 0'' | E 39° 40′ 0'' |
by