Microdrillia trina is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae.

[1] The length of the shell attains 10 mm.

It contains eight whorls, four in the protoconch and four in the teleoconch.

This marine species occurs in the Gulf of Mexico.and in the Caribbean Sea.

Found as a fossil of the Miocene on Trinidad.