Thomas Henry Reilly (August 3, 1884 – October 18, 1918) was a right-handed Major League Baseball shortstop who played for three seasons. He played for the St. Louis Cardinals from 1908 to 1909 and the Cleveland Naps in 1914. He played his first game on July 27, 1908, and his last game on July 3, 1914.
He was born in St. Louis, Missouri and died of pneumonia in New Orleans, Louisiana.