Landusky is an unincorporated community and census-designated place (CDP) in Phillips County, Montana, United States, with a population of 22 per the 2020 census.

Ore Street dead-ends in Landusky and leads southwest out of the Little Rockies 3.5 miles (5.6 km) to Montana Highway 66.

The community is served by the Zortman post office, less than 5 miles (8 km) to the northeast across the Little Rockies but 21 miles (34 km) by road.

Landusky was first listed as a CDP prior to the 2020 census.

This Phillips County, Montana state location article is a stub.