A chemical substance is a material with a specific chemical composition. In everyday language, often only synthetic and refined chemicals (as produced by the chemical industry) might be understood as chemicals.

Look up chemical in Wiktionary, the free dictionary.

Chemical may also refer to:

• Chemical industry
• Chemical element
• Chemical warfare
• Drug, any substance that, when absorbed into the body of a living organism, alters normal bodily function
• Chemistry, relating to the science of matter and the changes it undergoes