Maurice Joseph Fenn (5 May 1911 – 11 April 1995) was a Fijian cricketer.
Fenn made his first-class debut for Fiji in 1948 against Auckland during Fiji's 1947–48 tour of New Zealand, where he played five first-class matches in total.
Fenn played a further four first-class matches during Fiji's 1953–54 tour of New Zealand, with his final first-class match for Fiji coming against Auckland.
Widely regarded as the best bowler Fiji has produced, Fenn took 50 wickets at a bowling average of 20.90.
Fenn also represented Fiji in 25 non first-class matches from 1948 to 1960, with his final match for Fiji coming against Newcastle during their 1959–60 tour of Australia.