Glen Elk Historic District is a national historic district located at Clarksburg, Harrison County, West Virginia. The district encompasses 131 contributing buildings north of the central business district of Clarksburg. The area was developed after 1898, and contains a mixture of residential and commercial buildings. They include commercial warehouses built of brick and stone, small commercial buildings, housing specialty shops and eateries, and frame dwellings. Located in the district is the Baltimore and Ohio Railroad Depot (1903).