Microdrillia sansibarica is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae.
According to Kilburn this species may be a synonym of Microdrillia patricia, but appears to have a more produced base and to lack a basal cord on early whorls.
According to Tucker (2004), Bela (Acrobela) sansibarica <small>Thiele, J., 1925</small> is a synonym of Bela chuni <small>Thiele, 1925.</small>
This marine species occurs in the Zanzibar Channel.