cmh

CMH is an acronym that can refer to several different things depending on context. The most widely recognized use is as the IATA airport code CMH for John Glenn Columbus International Airport, located in Columbus, Ohio, United States. The airport began as Port Columbus in 1929 and was renamed in 2016 in honor of astronaut John Glenn. In aviation usage, CMH appears on tickets, baggage tags, and timetable listings to identify the airport serving the Columbus area.

In historical medical contexts, CMH has stood for Children's Memorial Hospital in Chicago, a pediatric hospital that operated for more than a century. In 2004 it affiliated with Northwestern Memorial HealthCare and became part of the Ann & Robert H. Lurie Children's Hospital of Chicago, which continues the pediatric care mission in the city.

Beyond these examples, CMH is used as an acronym by various organizations, businesses, and programs, with meanings that vary by region and field. Because CMH can refer to many different entities, determining the intended meaning from context, documentation, or accompanying identifiers is important.