David Frederick Cock (22 October 1914 – 26 September 1992) was an English cricketer. He was a right-handed batsman who sometimes played as a wicket-keeper. He was born in Great Dunmow, Essex.

Cock made his first-class debut for Essex against Kent in the 1939 County Championship. During that season, he played 11 first-class matches and scored 326 runs, with an average of 23.28. This included two half centuries. His first half century was 79 not out against Sussex. His second half century was 98 against Somerset at Chalkwell Park, which was close to 100 runs. World War II stopped first-class cricket in England during the war. Cock served in the Royal Air Force and held the rank of Acting Pilot Officer in February 1941. However, he left his position on 27 May 1942. After the war, he returned to play for Essex, appearing in three first-class matches during the 1946 County Championship. His final match was against Surrey. He did not play for Essex again after this season. In total, Cock played 14 first-class matches for Essex, scoring 355 runs with an average of 19.72.

In 1951, he played one match in the Minor Counties Championship for Cambridgeshire against Lincolnshire. He died on 26 September 1992 in Uttlesford, Essex.

On 18 February 1985, The David Cock Foundation was created using money from the sale of part of his farmland in Essex and his legacy to support charities.