Peter Kappesser was a soldier in the United States Army who received the Medal of Honor for his actions during the American Civil War.

On November 24 he was one of four men of the 149th New York Infantry Regiment to earn the award for his valor at Lookout Mountain, where he captured a battle flag of Bragg's army, (Confederate States of America).

He tore the flag from its staff, thrust the bunting under his coat, and then returned to the battle in order to reach a wounded comrade and carry him from the battlefield.

He is buried at Woodlawn Cemetery in Syracuse, New York near the area reserved for the William Lilly GAR (Grand Army of the Republic) Post.

Newspaper obituary in Syracuse, New York dated June 2, 1930: "Peter Kappesser, Holder of Medal of Honor, Dies After Operation".