Jacob Harris was a first-class cricketer and sports coach from Karachi, Pakistan. He was born in Karachi, when it was still part of British India. He studied at St Patrick's High School, Karachi. He played cricket as a right-hand batsman and a leg-break bowler. He played for the Sindh main first-class team from 1932/33 and 1938/39 and the Maharashtra main first-class team from 1936/37 and 1939/40.Between 1932 and 1943 he played 25 first-class matches.Between 1953 and 1957 he umpired six first-class matches as well.