Frederick Augustus Tritle (August 7, 1833 – November 18, 1906) was an American politician, businessman, and attorney. He served as the sixth Governor of Arizona Territory and held a number of lesser government positions there and in Nevada. He presented the silver spike used at the Promontory Point was held ceremony in May 1869. Tritle was the first governor to have visited Arizona before his appointment and also the first governor to make the territory his lifelong home.