Its name comes from Armin Joseph Deutsch, an American astronomer and science-fiction author.

This crater has a relatively low, eroded rim that is heavily damaged along the southeastern section.

The interior floor of Deutsch is relatively level, but is marked by a number of small impacts.

A ray from Giordano Bruno to the north-northwest passes along the western edge of Deutsch.

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