Diplock may refer to:
People Bramah Joseph Diplock, 1903 inventor of the pedrail wheel Kenneth Diplock, Baron Diplock (1907–1985), English judge and Law Lord Les Diplock (1899–1983), Australian politician Philip Russell Diplock (born 1927), British architect
Other Diplock courts, courts without jury established in Northern Ireland in an attempt to overcome jury intimidation, following the recommendation by Baron Diplock Diplock Glacier, a glacier in Antarctica