John Parker, 6th Earl of Morley, English colonel and politician, Lord Lieutenant of Devon (d. 2015)
John St. Aubyn Parker, 6th Earl of Morley (29 May 1923 – 20 September 2015) was a British peer, a professional soldier, and county dignitary. Morley was a staunch monarchist and royal servant.

John Parker was born at Saltram House on 29 May 1923, the son of Hon John Holford Parker (1886–1955) by his wife Hon Marjory Katherine Elizabeth St. Aubyn (b.1893), a daughter of the 2nd Baron St Levan. His grandfather was Albert Parker, 3rd Earl of Morley (1843–1905), who was succeeded in turn by his sons Edmund, the 4th Earl of Morley (1877-1951) and Montagu, the 5th Earl (1878-1962), who both died without issue.