FEX may refer to:
* Fabric extenders, in
Cisco Nexus switches#Nexus 2000 series
*
Fexofenadine
Fexofenadine, sold under the brand name Allegra among others, is an antihistamine pharmaceutical drug used in the treatment of allergy symptoms, such as hay fever and urticaria.
Therapeutically, fexofenadine is a selective peripheral H1 block ...
*
Foreign Extemporaneous Speaking
Extemporaneous Speaking (Extemp, or EXT) is a speech delivery style/speaking style, and a term that identifies a specific forensic competition. The competition is a speech event based on research and original analysis, done with a limited-prepar ...
{{disambiguation