Tacquet is a small, bowl-shaped crater that lies near the southern edge of Mare Serenitatis, in the northeast part of the Moon.

The surface near the crater is marked by high-albedo ejecta.

To the west is a system of rilles designated the Rimae Menelaus.

It was named after Brabantian mathematician André Tacquet (1612-1660).

[2] By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Tacquet.