John Nelson Hinkle (January 11, 1854 – October 25, 1905)[1] was the 34th mayor of Columbus, Ohio and the 31st person to serve in that office.[2] He was elected on April 1, 1901 and served Columbus for one term. He sought re-election for a second term.[3] The opposing candidate, Republican nominee Robert H. Jeffrey, defeated incumbent mayor Hinkle.[4] Jeffrey took office on May 4, 1903.[5] He died on October 25, 1905.[1]