Hallelujah Peak (), also known as Peak 12590, is located in the Bighorn Mountains in the U.S. state of Wyoming. The peak is the fifth-highest in the range and it is in the Cloud Peak Wilderness of Bighorn National Forest. Hallelujah Peak is northeast of Black Tooth Mountain and connected to that peak by a knife-like ridge known as an arête.
The first recorded ascent was made by W. B. Willcox and his brother Alan Willcox.