The White-collared Oliveback (Nesocharis ansorgei) is a species of estrildid finch found in Africa. It has an estimated global Extent of Occurrence of 94,000 kmē.
It could be found at Burundi, The Democratic Republic of the Congo, Rwanda, Tanzania & Uganda. However, it is not commonly seen at least parts of its range. The status of the species is evaluated as Least Concern.