McCalmont is a surname. Notable people with the surname include:
Harry McCalmont (1861–1902), British Army officer, racehorse owner, yachtsman and politician Hugh McCalmont (1845–1924), British politician James McCalmont (1847–1913), British Army officer and politician Robert McCalmont (1881–1953), Northern Irish politician and British Army officer
See also McCalmont Township, Pennsylvania McCalmont Cup, a greyhound racing competition in Kilkenny, Ireland