Osmaniye Province (Turkish: Osmaniye ili) is a province in south-central Turkey. It was named Cebel-i Bereket (lit. 'Fertile Mountain') in the early republic until 1933, when it was incorporated into Adana Province. It was made a province again in 1996. It covers an area of 3,767 km2 and has a population of 479,221 (2010 est). The province is situated in Çukurova, a geographical, economical and cultural region. The capital of the province is Osmaniye. Other major towns include Kadirli and Düziçi.