•
John Blake (soldier) (1856–1907), Irish-American soldier and adventurer •
John Bradby Blake (1745–1773), British botanist •
John F. Blake (1922–1995), American intelligence official •
John Frederick Blake (1839–1906), British geologist and clergyman •
John Henry Blake (1808–1882), Irish land agent •
John Lauris Blake (1788–1858), American clergyman and author •
John T. Blake (c. 1901–1987), American research scientist •
John Thomas Blake (1853–1940), New Zealand surveyor, interpreter, land agent, historian, racehorse owner and trainer •
John Rennie Blake (1825–1900), faculty chairman in charge of Davidson College, 1871–1877 ==See also==