The Denis Julien Inscription is an incised carving on a rock face in a side canyon of the Green River north of Canyonlands National Park in southwestern Grand County, Utah, United States.

The site is about 750 feet (230 m) to the east of the Green River in Hell Roaring Canyon, at the top of a talus slope.

The inscription was left by trapper Denis Julien in 1836, when he was one of the few Europeans in southern Utah.

Nearby inscriptions left by Bureau of Reclamation employees in 1914 on a damsite survey expedition are also considered significant.

This article about a property in Utah on the National Register of Historic Places is a stub.