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 km².

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.