Jujubinus montagui is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

The imperforate or very minutely perforate shell has a conical.

The earlier buff, following pale buffish-ashen, is ornamented with obscure maculations or zones of chestnut.

The shell is obliquely striate, spirally lirate with 6 subequal lirae on the penultimate whorl.

The body whorl is a little convex above, carinated in the middle, convex beneath and provided with 7–8 concentric, white-and-brown articulated lirae.