| Party: | Naga People's Front (2003–) |
| Alma Mater: | North-Eastern Hill University |
| Father: | K. K. Chire |
| Nationality: | Indian |
| Office1: | Leader of Nagaland People's Front |
| Constituency1: | Phek |
| Term Start1: | 2022 |
| President1: | Apong Pongener |
| Predecessor1: | T. R. Zeliang |
| Office2: | Member of the Nagaland Legislative Assembly |
| Constituency2: | Phek |
| Term Start2: | 2003 |
| Predecessor2: | Zachilhü Vadeo |
| Birth Date: | October df=y |
| Caption: | Nienü in 2019 |
Küzholüzo Nienü (born 10 October 1966), popularly known as Azo Nienü, is an Indian politician from Nagaland. He has been elected to the Nagaland Legislative Assembly five times from the Phek constituency in 2003 and every subsequent election.
Nienü has earlier served as a minister in the Nagaland Legislative Assembly.[1] [2] He is currently serving as the leader of Naga People's Front Legislature wing and was former co-chairman of United Democratic Alliance government in the Nagaland Legislative Assembly.[3] [4]