John Charles Sage (September 12, 1866 – October 2, 1919) was the bishop of the Missionary District of Salina in The Episcopal Church from January 17, 1918, until his death.
He was then ordained deacon on April 21, 1891, by Bishop William Andrew Leonard of Ohio in Grace Church, Cleveland, and then as a priest on November 19, 1893, by Bishop William Edward McLaren of Chicago.
In 1893 he became rector of St Luke's and All Saints’ Church in Berwyn, Illinois, while in 1897 he served as rector of St Luke's Church in Dixon, Illinois.
"[4] He also worked to secure funds with which to carry on a general educational propaganda throughout his missionary district.
Sage died unexpectedly at the Bishop's House in Salina, Kansas less than two years into his episcopacy on October 2, 1919, as the result of Myocarditis.