The marsh widowbird or Hartlaub's widowbird (Euplectes hartlaubi) is a bird in the family Ploceidae.[1] The species was first described by José Vicente Barbosa du Bocage in 1878.
It is found in Angola, Cameroon, the Republic of the Congo, the Democratic Republic of the Congo, Gabon, Kenya, Nigeria, Tanzania, Uganda, and Zambia.