Oospira smithi is a species of air-breathing land snail, a terrestrial gastropod mollusk in the family Clausiliidae, the door snails. This land snail lives in limestone areas in Vietnam. The original description was published in 2007, and included details of the reproductive system and the radula. The shell is sinistral in coiling and has 8 or 9 whorls. The specific name smithi is in honor of Mr. Jady Smith, the project manager of the field research that resulted in the discovery of this species.