Commander Colin Campbell Mitchell FRSE MIME OBE (1904–21 January 1969) was a Scottish mechanical engineer also with a very prominent service record in the Royal Navy.
He joined the staff of MacTaggart Scott & Co in Loanhead on graduating and was promoted to Technical Director in 1931.
In the Second World War he served in the Royal Navy and reached the rank of Commander.
His proposers were Sir William Wallace, Ronald Arnold, Charles Patterson and Robert Schlapp.
His elder brother, Lt John Patrick Campbell Mitchell, was killed whilst serving in the Royal Flying Corps in the First World War on 21 April 1917 during the Second Battle of Arras.