John K

The name John K could refer to:

John K. Davis – (died July 31, 2019) former United States Marine Corps four-star general
John K. Rafferty – (died February 17, 2021) former American politician
John Kricfalusi – Canadian blogger, former animator, and voice actor
John Kufuor – Ghanaian politician
John K. Singlaub – (died January 29, 2022) former American OSS officer
John K. Watts – (died 3 June 2017) former Australian rules football player, radio broadcaster, and television personality