LEM

Lem or LEM may refer to one of the following.

Stanisław Lem, a recently deceased Polish science fiction author.
In mathematics, the Law of excluded middle.
the SIL code for Nomaande, a language of Cameroon.
Lem (artist), author of the webcomic Bunny.
Lunar Excursion Module, a former name of the Apollo Lunar Module.
Liquid Elastomer Molding (LEM), a unique gasket technology developed by Federal-Mogul Corporation.