Adam F. Helmer (c.1754 – April 9, 1830), also known as John Adam Helmer and Hans Adam Helmer, was an American Revolutionary War hero among those of the Mohawk Valley and surrounding regions of New York State. He was made nationally famous by Walter D. Edmonds' popular 1936 novel Drums Along the Mohawk with its depiction of "Adam Helmer's Run" of September 16, 1778 to warn the people of German Flatts of the approach of Joseph Brant and his company of Indians and Tories.