Tano (多野郡 Tano-gun) is a district located in Gunma, Japan.
As of 2003, the district had an estimated population of 49,743 and a density of 121.00 persons per km². The total area is 411.09 km².
On January 1, 2006, the district lost Onishi when it merged with the city of Fujioka. On January 23 of that same year, the town of Shin was amalgamated into the expanded city of Takasaki.
A planned merger of municipalities was implemented on June 1, 2009; Yoshii merged into the city of Takasaki.
Towns and villages
- "藤岡市・鬼石町合併協議会". 藤岡市ホームページ. September 2006. Retrieved 2006-09-06. (Japanese)