Rivomarginella morrisoni is a species of freshwater snail, gastropod mollusk in the family Marginellidae, the margin snails.

[2] It is native to central Thailand: Mae Klong River, Prachin Buri River, Nan River, Klong Bang O, Klong Ban Yikkan, Klong Prapa, Klong Rapipat.

[1] The type locality is Prachin Buri River, Kabin Buri District, Thailand.

[3] The height of the shell is 5.4 - 11.3 mm.

[3] Rivomarginella morrisoni lives in rivers, lakes, and canals.