Tillabéri (var. Tillabéry) is a town in northwest Niger. It is situated 120 km northwest of the capital Niamey on the River Niger. It is an important market town and administrative center, it is capital of the department of Tillabéri and Tillabéri Region. The town had a population of over 16000 at the 2001 census. The area was home to giraffe herds until the 1980s.