Distribution of Oligohalinophila dorri include Vietnam: lagune de Kao-hai near Huế, Thừa Thiên-Huế Province, Central VietnamKantor, Y. I., & Kilburn, R. N. (2001). "Rediscovery of Canidia dorri Wattebled, 1886, with discussion of its systematic position (Gastropoda: Neogastropoda: Nassariidae: Nassodonta)". Nautilus 115(3): 99-104. and Phan Ri River, Bình Thuận Province, Southeast Vietnam.Strong, E. E., Galindo, L. A., & Kantor, Y. I. (2017). "Quid est Clea helena? Evidence for a previously unrecognized radiation of assassin snails (Gastropoda: Buccinoidea: Nassariidae)". PeerJ 5: e3638. . It was also reported as abundant species from Nha Trang, Khánh Hòa Province in South Central Coast and from Phan Rang–Tháp Chàm, Ninh Thuận Province.
