CMH

CMH may refer to:


 * The IATA code for John Glenn Columbus International Airport in Columbus, Ohio
 * The National Rail station code for Cwmbach railway station in Rhondda Cynon Taf, Wales
 * CMH Records
 * Cambridge Military Hospital
 * Canadian Mountain Holidays
 * Canadian Museum of History
 * United States Army Center of Military History
 * Central Middlesex Hospital
 * Ceramic discharge metal-halide lamp
 * Children's Memorial Hospital
 * Children's Museum of Houston
 * Cohen Modal Haplotype
 * Combined Military Hospital
 * Combined Military Hospital (Dhaka)
 * Community mental health
 * Congressional Medal of Honor
 * Consolidated Media Holdings
 * Creatine monohydrate