Chem

Chem may refer to:
 * Chemistry
 * Chemical
 * Chem (journal), a scientific journal published by Cell Press
 * Post apocalyptic slang for "drugs", medicinal or otherwise in the Fallout video game series.

In Ancient Egyptian usage:
 * Khem (also spelt Chem), the Egyptian word for "black"
 * Min (god), in the past erroneously named Khem

CHEM may refer to :
 * A metabolic panel: for instance, CHEM-7, which is the basic metabolic panel
 * CHEM-DT, a Canadian television channel