Michael Joseph McNally (June 29, 1860 – November 2, 1916) was a United States Marine Sergeant who received the Medal of Honor for actions during the Second Samoan Civil War. McNally was part of a joint British, American and Samoan expedition against Samoan rebels on Upolu, Samoa in mid-1899. He fought at the First Battle of Vailele on April 1, 1899 and was subsequently awarded the Medal of Honor along with Private Henry L. Hulbert. Both McNally's and Hulbert's citations incorrectly list them as serving in the Philippines during the time of their distinguished service though they served on USS Philadelphia (C-4) which was never dispatched to fight in the Philippine-American War.