John Gilbert Cock MM MID was an English footballer who played for various English club sides as a centre forward. He also had the distinction of being the first Cornishman to play for the England national team, a decorated World War I soldier, and an actor. His younger brothers, Donald Cock and Herbert Cock, also played professional football.

The Military Medal (MM) was a military decoration awarded to personnel of the British Army and other arms of the armed forces, and to personnel of other Commonwealth countries, below commissioned rank, for bravery in battle on land. The award was established in 1916, with retrospective application to 1914, and was awarded to other ranks for "acts of gallantry and devotion to duty under fire". The award was discontinued in 1993, when it was replaced by the Military Cross, which was extended to all ranks, while other Commonwealth nations instituted their own award systems in the post war period.