- a variant of thana.
- a river in eastern Africa, the longest river in Kenya, where it flows eastward before turning south to the Indian Ocean: site of a series of hydroelectric dams. 620 miles (998 kilometers) long.
- the largest lake in Ethiopia, located in the Amhara Region and the source of the Blue Nile: recognized for its historical, cultural, ecological, and international significance. 1,200 square miles (3,100 square kilometers).
- a small Madagascan lemur, Phaner furcifer
- a large tree shrew, Tupaia tana, of Sumatra and Borneo
- a lake in NW Ethiopia, on a plateau 1800 m (6000 ft) high: the largest lake of Ethiopia; source of the Blue Nile. Area: 3673 sq km (1418 sq miles)
- a river in E Kenya, rising in the Aberdare Range and flowing in a wide curve east to the Indian Ocean: the longest river in Kenya. Length: 708 km (440 miles)
- a river in NE Norway, flowing generally northeast as part of the border between Norway and Finland to the Arctic Ocean by Tana Fjord. Length: about 320 km (200 miles)
