Pontanus is a lunar impact crater that is located in the southern highlands of the Moon's near side.

It lies approximately midway between the craters Sacrobosco to the north-northeast and Gemma Frisius to the south-southwest.

[1] The rim of this crater has been heavily worn by subsequent impacts, leaving a roughly circular, uneven slope about the interior.

The interior floor is relatively uneven, particularly in the northern half, but is not marked by any significant craters.

[4][1] By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Pontanus.