Peter Brandvold is an American western fiction author, who has written more than thirty published novels.

Born and raised in North Dakota, Peter Brandvold spent much of his early life riding horses, reading western novels, and watching western movies.

Brandvold later attended the University of North Dakota in Grand Forks, and graduated with a B.A. in English. He then wrote for several old west magazines such as Country Journal and True West Magazine, until 1995, when he decided to write adventure stories.

Peter Brandvold also writes under his Frank Leslie pen name, of which he has several published titles in the Yakima Henry series. He has also written several titles in the Longarm series and two titles for Ralph Compton.

He is presently working on a screenplay for his popular 2001 novel, The Romantics.

He also co-writes DC Comics's Guns and Roses series, featuring the western character, Bat Lash.