The assay office list
Nilo Saharan was an individual who lived in the late 24th century.
In 2373, Saharan stored valuables in the assay office on Deep Space 9. When Arissa accessed the office's computer, she pulled up a list of names, upon which Saharan's name appeared. (DS9: "A Simple Investigation", display graphic)
This individual was only mentioned in writing.
As well, this name might be a reference to the proposed Nilo-Saharan languages of Africa.