Andrew O. Apple (January 30, 1845 – June 7, 1890) was a United States soldier and native of Pennsylvania who fought with the Union Army as a member of the 12th West Virginia Volunteer Infantry Regiment during the American Civil War. He was recognized with his nation's highest award for valor, the U.S. Medal of Honor, for "conspicuous gallantry as color bearer in the assault on Fort Gregg" during the Third Battle of Petersburg, Virginia, on April 2, 1865. The award was conferred on May 12 of that same year.