John K. Hale (27 August 1858 – 31 January 1946) was an American politician from Iowa.
Hale was born in Guilford, Connecticut, on 27 August 1858, and moved with his family near Anamosa, Iowa, in 1859.
After she died in 1881, Hale remarried the next year, to Clare E. Stone, and had another daughter.
He first served as a trustee of Jackson Township, before his election as a Jones County supervisor.
After eight years as a county supervisor, he ran for the Iowa House of Representatives in 1914, and served a single two-year term for District 47.