The Lone Star Ranger Zane Grey - The Lone Star Ranger is a Western novel published by Zane Grey in 1915. The book takes place in Texas, the Lone Star State, and several main characters are Texas Rangers, a famous band of highly capable law enforcement officers. It follows the life of Buck Duane, a man who becomes an outlaw and then redeems himself in the eyes of the law.

The novel was dedicated to the Texas Ranger John Hughes.