Patrick Shannon (1824 – December 16, 1871) was the Mayor of Kansas City, Missouri from 1864–1865
Shannon was born in 1824 in County Cavan, Ireland. He immigrated to Kansas City in 1855 where he operated a dry goods business at Main and Front Streets. He was elected to the city council in 1861. During the American Civil War he joined the Confederates and rose from private to major. He was elected to the council in 1864 and became mayor when Robert T. Van Horn and then was re-elected to another term.
During his term the Missouri Pacific Railroad reached Kansas City, the first volunteer fire department was raised and the first gas lights were lit.
He was buried in St. Mary's Cemetery.