MKX is a protein.

MKX may also refer to:

Lincoln MKX, an automobile Jaguar Mark X, an automobile Mortal Kombat X, a video game National Weather Service Milwaukee/Sullivan, Wisconsin, (WFO ID MKX), a National Weather Service forecast office based out of Milwaukee Mitchell International Airport

See also Mark X (disambiguation) also covering Mark 10 (Mk10) mk10 (disambiguation)