MCK

MCK could refer to:


 * Claisebrook railway station, Perth, Australia; Perth transit station code MCK
 * Macair Airlines; ICAO airline code MCK
 * McCook (Amtrak station), Nebraska, United States; Amtrak station code MCK
 * McCook Regional Airport, Nebraska, United States; IATA airport code MCK
 * McKesson Corporation; New York Stock Exchange symbol MCK
 * McKinnon railway station, Melbourne, Australia; Melbourne transit station code MCK
 * Medical College, Kottayam, Kerala, India
 * McKinsey & Company
 * Moscow Standard Time
 * Marist College Kogarah, School in Sydney, Australia