John D. Butler (August 4, 1915 – February 9, 2010) was an American Republican politician from California.

[2] During his tenure as mayor, he was responsible for initiating the one-way street system in downtown San Diego and began the development of Mission Bay.

He guest starred as himself on two CBS television series, the variety program, Faye Emerson's Wonderful Town, and What's My Line?.

In the latter, a quiz program, broadcast on October 5, 1952, panelist Arlene Francis guessed Butler's identity.

[3] Butler lived in the Point Loma area of San Diego during the last decades of his life and was active at San Diego Yacht Club and La Playa Yacht Club.