| Official Name: | Tillabéri |
| Other Name: | Tillabéry |
| Pushpin Map: | Niger |
| Pushpin Relief: | 1 |
| Pushpin Label Position: | top |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Niger |
| Subdivision Type: | Country |
| Subdivision Name: |  Niger |
| Subdivision Name1: | Tillabéri Region |
| Area Total Km2: | 729.2 |
| Population As Of: | 2012[1] |
| Population Total: | 47,678 |
| Population Urban: | 22,774 |
| Population Density Km2: | auto |
| Coordinates: | 14.2119°N 1.4528°W |
Tillabéri (var. Tillabéry) is a town in the extreme west of Niger. It is situated 1130NaN0 northwest of the capital Niamey on the River Niger.[2] It is an important market town and administrative center, being the capital of department of Tillabéri and Tillabéri Region. The town had a population of 47,678 at the 2012 census.[3]
Tillabéri has a hot arid climate (Köppen climate classification BWh), despite receiving around 4000NaN0 of rainfall per year, due to the extreme and persistent heat and consequent extreme potential evapotranspiration. Every month averages over 32.20NaN0 maximum temperature. Only August at the height of the wet season with its elevated and oppressive humidity, alongside December and January in the middle of the long dry season, average maxima under 35C. In terms of high temperature, even mornings are uncomfortable except during December and January, when the strong dusty harmattan wind prevails.