The Klaas's Cuckoo (Chrysococcyx klaas) is a species of cuckoo in the Cuculidae family. It is found in Angola, Benin, Botswana, Burkina Faso, Burundi, Cameroon, Central African Republic, Chad, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Eritrea, Ethiopia, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Kenya, Liberia, Malawi, Mali, Mauritania, Mozambique, Namibia, Nigeria, Rwanda, Sao Tomé and Principe, Senegal, Sierra Leone, Somalia, South Africa, Sudan, Swaziland, Tanzania, Togo, Uganda, Yemen, Zambia, and Zimbabwe.

The species was named by French explorer François Le Vaillant after his Khoikhoi servant. Le Vaillant was the only colonial biologist to name a bird species after local people.