Thomas E. O'Shea (April 18, 1895 – September 29, 1918) was a United States Army corporal during World War I. He was killed by Germans while trying to rescue others near Le Catelet, France on September 29, 1918. He posthumously received the Medal of Honor for his heroic actions. O'Shea was a resident of Summit, New Jersey. O'Shea is buried in the Somme American Cemetery and Memorial in Picardy, northern France.