Maintenonia blignautae is a species of sea snail in the family Columbellidae.

It is known only from the coast of South Africa.

This species was first described as Anachis blignautae in 1998 by Richard Kilburn, based on two juvenile specimens collected from crayfish traps.

[2] Maintenonia blignautae is a marine species known from the continental slope off Richards Bay in KwaZulu-Natal, South Africa.

The type specimen was collected at a depth of 600 m (2,000 ft).