Haugan (also Waugan) is an unincorporated community and census-designated place in Mineral County, Montana, United States.

[7] Haugan was established and maintained to serve as a pusher station for the Milwaukee Road railroad trains ascending the Bitterroot Range of the Rocky Mountains.

Opened on March 25, 1911, the post office closed on August 31, 1944, only to reopen four years later.

[10] Haugan is surrounded by the Lolo National Forest and is the site of the Savenac Nursery Historic District.

Billboards and signs telling drivers the distance are seen on Interstate 90 around western Montana and northern Idaho.