| Tancua | |
| Arrondissement: | Saint-Claude |
| Canton: | Hauts de Bienne |
| Insee: | 39 |
| Postal Code: | 39400 |
| Commune: | Morbier |
| Coordinates: | 46.5256°N 5.98°W |
| Elevation M: | 889 |
| Elevation Min M: | 620 |
| Elevation Max M: | 1110 |
| Area Km2: | 6.74 |
| Population: | 151 |
| Population Date: | 2004 |
Tancua is a village in the department of Jura in the region of Bourgogne-Franche-Comté, France.[1] Formerly a separate municipality, it was merged with Morbier on 1 January 2007.[2] Its inhabitants are known as Quewans.[3]
Tancua was, until well into the 20th century, mainly agricultural, especially for livestock breeding and dairy farming, with somewhat of a logging industry.