Frank Tolan (May 1854 – 1899) was an American private in the U.S. Army who served with the 7th U.S. Cavalry during the Great Sioux War of 1876–77. He was one of twenty-two soldiers received the Medal of Honor for gallantry, volunteering to carry water to wounded soldiers on Reno Hill, at the Battle of the Little Bighorn on June 25, 1876.