Tomora is a commune in the Cercle of Bafoulabé in the Kayes Region of south-western Mali. The administrative centre (chef-lieu) is Oussoubidiagna, a small town with around 4,000 inhabitants. The commune contains over thirty small villages. In the 2009 census it had a population of 32,527. Most of the inhabitants of Tomora are Khassonkés, with a minority of Soninke, Fulani and Malinke engaged mostly in farming.