Biomphalaria smithi is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails.

[1] The type material is stored in the Natural History Museum.

[1] The type locality is the Lake Albert,[1] Uganda.

The width of the shell is from 7.5 mm to 9.5.

The height of the shell is 4 mm.