Colliers is an unincorporated community in Brooke County, West Virginia, United States. It is the second oldest town in Brooke County, Wellsburg being the oldest. Its population expanded steadily throughout the 1800s and into the 1900s because a section of the Pittsburgh, Cincinnati, Chicago, and St. Louis Railroad ran through the town, and because numerous coal mines were established, including the Blanch Coal Mine and the Locust Grove Mine.