Thomas Flood may refer to:
Thomas S. Flood (Medal of Honor) (1840–?), American Civil War sailor and Medal of Honor recipient Thomas H. Flood (1804–1873), Delegate and Senator to the General Assembly of Virginia Thomas S. Flood (politician) (1844–1908), U.S. Representative from New York Thomas Flood (astronomer) (1919–1988), Scottish amateur astronomer Tom Flood (born 1955), Australian novelist Tom Flood (footballer) (fl. 1909–1918), Scottish footballer Tim Flood (baseball) (Thomas Timothy Flood, 1877–1929), American baseball player