John Leland

• John Leland (antiquary), English antiquary
• John Leland (Baptist), United States Baptist minister
• John Leland (journalist), New York Times reporter, columnist, and book author
• John Leland (politician), British Army general and English Member of Parliament for Stamford, 1796-1808
• John Leland (Presbyterian), English Presbyterian minister
• John E. Leland, American engineer and Director of the University of Dayton Research Institute