CHX

Chx may refer to:


 * Chamonix, a town in the French Alps
 * Chancellor of the Exchequer
 * Chicago Stock Exchange
 * Charing Cross railway station (National Rail code) in London
 * Chlorhexidine: A disinfectant and topical anti-infective agent used also as mouthwash to prevent oral plaque
 * CHX, the IATA airport code for Changuinola "Capitán Manuel Niño" International Airport in Changuinola, Panama
 * Cycloheximide, an inhibitor of protein biosynthesis in eukaryotic cells