|1928 Amsterdam||Epee, individual|
|1932 Los Angeles||Foil, team|
|1932 Los Angeles||Epee, team|
George Charles Calnan (January 18, 1900 – April 4, 1933) was a United States Navy officer who also competed for the United States as a fencer. Competing in four Summer Olympics, he earned three bronze medals (Individual épée: 1928, Team foil: 1932, Team épée: 1932)
A native of Boston, Massachusetts, Calnan did not start fencing until he was a student at the United States Naval Academy in Annapolis, Maryland. By the time he was a senior, he was captain of the Navy's fencing team. Two years later, Calnan competed for the US at the 1924 Summer Olympics in Paris where he finished tied for fifth in the team épée competition. Calnan took the Olympic Oath at the 1932 Summer Olympics in Los Angeles.
He was posthumously inducted in the US Fencing Hall of Fame in 1963, among the first inductees.