Highway 69 in the U.S. State of Montana is a route running northerly from an intersection with Montana Highway 55 in the community of Whitehall. The highway extends approximately 38 miles (61 km) to an intersection with Interstate 15 at the northern edge of the town of Boulder. Most of the route follows the Boulder River valley, a scenic and relatively unspoiled rural landscape.

Roue 69 begins at MT 55 at Whitehall. Concurrent with Montana Highway 2, it runs parallel to Interstate 90, before intersecting it, and proceeding northward. An intersection with Boulder Cutoff Road is not far off. It reaches an intersection with Wilson Park Road before continuing northward, and intersecting Dunn Canyon Road. Dunn lane intersects from the east, and shortly after, route 69 intersects with Lower Valley Road. Thereafter, it intersects Quintana Lane before intersecting several minor roads. Through a scenic and rural area, 69 proceeds north as South Main Street as it enters Boulder. Route 69 ends at I-15, at Boulder.

The southerly six miles of the current Highway 69 follows a former alignment of U.S. Route 10 and parallels Interstate 90. (The U.S. 10 designation was deleted in Montana after the completion of the interstate.) The remainder of Highway 69 was formerly designated as Montana Secondary Highway 281.