John Pennycuick may refer to: Brigadier John Pennycuick (brigadier) (1789–1849), British Army officer who died at the Battle of Chillianwalla in the Second Anglo-Sikh War Colonel John Pennycuick (engineer) (1841–1911), British Army engineer and civil servant, son of Brigadier John Pennycuick Sir John Pennycuick (judge) (1899–1982), English barrister and judge, tennis player, son of Colonel John Pennycuick