Denemarken is a small village in the municipality of Slochteren, in the Dutch province of Groningen. It consists of some ten dwellings, mostly farms. The name does not reference the Scandinavian country but means wild lands in the local dialect. It is notable for laying on top of the Groningen gas field, the largest natural gas field in Europe. In 2015 the nature reserve 't Roegwold (wild swamp forest) was opened, overlapping partly with Denemarken.