Bestwig is a municipality in the Hochsauerland district, in North Rhine-Westphalia, Germany.

Since 2009, the municipality is officially divided into six Ortschaften, each containing one to five villages (Ortsteile).

The Sauerland forests are popular among hikers and, in winter, skiing is possible.

The coat of arms shows a silver Saint Andrew's Cross on blue ground.

The colors silver and blue show the allegiance to the former county of Arnsberg.