Rock Cave is a census designated unincorporated community in Upshur County, West Virginia, United States. The town is located southwest of Buckhannon at the junction of West Virginia Route 4 with County Routes 11/2 and 20/28. Throughout the community's history, Rock Cave has been known as Bob Town, Centerville, and Centreville. The community's name is a corruption of Rock Lava, which referred to rocks purportedly of volcanic origin unearthed near the town site.