Sir Peter Jack Matthews CVO, OBE, QPM (25 December 1917 – 6 January 2003) was a British police officer who rose to become Chief Constable of Suffolk Constabulary and the Surrey Police.
In 1937 he joined the Metropolitan Police, but during the Second World War was commissioned into the RAF in 1942 and flew as a pilot until demobilisation in 1946 with the rank of flight-lieutenant.
He then returned to the Metropolitan Police to continue his career, rising to Chief Inspector in the early 1950s, and chief instructor at the Metropolitan Police Dog Training Establishment at Keston, Kent.
Around that time he was seconded to the Cyprus Police, with a team of policemen and a pack of Alsatian dogs, with the task of detecting buried arms and ammunition during the EOKA crisis of 1955.
On his return to England he was appointed Chief Superintendent in charge of "P" Division, with headquarters at Catford.