"One Hell of an Amen" is a song co-written and recorded by American country rock singer Brantley Gilbert. It was released in November 2014 as the third single from his third studio album Just as I Am. The song was written by Gilbert, along with Mike Dekle and Brian Davis.

Brantley Keith Gilbert is an American country rock singer, songwriter and record producer from Jefferson, Georgia. He was originally signed to Colt Ford's label, Average Joes Entertainment, where he released Modern Day Prodigal Son and Halfway to Heaven. He is now signed to the Valory division of Big Machine Records where he has released five studio albums—a deluxe edition of Halfway to Heaven, Just as I Am, The Devil Don't Sleep, Fire & Brimstone, So Help Me God, and 14 country chart entries, four of which have gone to number one. He also co-wrote and originally recorded Jason Aldean's singles "My Kinda Party" and "Dirt Road Anthem."