The blue-bellied roller (Coracias cyanogaster) is a member of the roller family of birds which breeds across Africa in a narrow belt from Senegal to northeast Democratic Republic of the Congo. It is resident, apart from some local seasonal movements, in mature moist savannah dominated by Isoberlinia trees.
The blue-bellied roller was given the binomial name Coracias cyanogaster in 1816 by the French naturalist Georges Cuvier based on "Le Rollier à ventre bleu" that had been described and illustrated by François Levaillant in 1806. The specific epithet combines the Ancient Greek kuanos meaning "dark-blue" with gastēr meaning "belly". Levaillant mistaken believed that the specimen had been collected on the island of Java. The species is resident in West-Africa and the type location was later designated as Senegal. The species is monotypic: no subspecies are recognised.
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