Joseph Bucklin Bishop (September 5, 1847 – December 13, 1928), was an American newspaper editor (1870–1905), Secretary of the Isthmian Canal Commission in Washington, D.C. and Panama (1905–1914), and authorized biographer and close friend of President Theodore Roosevelt. Bishop was the author of 13 books and dozens of magazine articles, and he edited the 1920 best-seller, Theodore Roosevelt’s Letters to His Children.