Jonathan Gregory "J.D." Davis is an American professional baseball third baseman for the Oakland Athletics of Major League Baseball (MLB). He has previously played in MLB for the Houston Astros, New York Mets and San Francisco Giants. Davis played college baseball at California State University, Fullerton, and was drafted by the Astros in the third round of the 2014 MLB draft. He made his MLB debut with the Astros in 2017.

The 2014 Major League Baseball draft was held from June 5 through June 7, 2014, to assign amateur baseball players to MLB teams. The first two rounds were conducted on June 5, followed by rounds three through ten on June 6, and the last 30 rounds on June 7. It was broadcast from Studio 42 of the MLB Network in Secaucus, New Jersey.