William John Kenny (January 12, 1853 – October 24, 1913) was an American prelate of the Roman Catholic Church.

[1] In June 1884, Kenny was named pastor of the Immaculate Conception Parish in Jacksonville, Florida.

Kenny led relief efforts during yellow fever outbreaks and the Jacksonville Great Fire of 1901.

[3] He received his episcopal consecration on May 18, 1902, from Cardinal James Gibbons, with Bishops Benjamin Keiley and Leo Michael Haid serving as co-consecrators, in the Cathedral of St.

[3] While traveling to the American Missionary Congress in Boston, Massachusetts, in October 1913, Kenny stopped in Baltimore to visit St. Mary's Seminary.