Belva is an unincorporated community in west Nicholas County, West Virginia, United States. The town is situated at the bottomland surrounding the convergence of Bells Creek with Twentymile Creek and, subsequently, Twenty Mile Creek with the Gauley River. Fenwick is also the location of the convergence of two state highways: West Virginia Route 16 and West Virginia Route 39. The community is named in honor of Belva Ann Lockwood, a presidential candidate and early feminist. Belva post office was established in 1885.