The Dusky Crested-flycatcher (Elminia nigromitrata) is a species of bird in the Stenostiridae family. It is found in Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Gabon, Ghana, Guinea, Kenya, Liberia, Nigeria, Sierra Leone, Sudan, Tanzania, and Uganda. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montane forests.