Ahlen is a town in North Rhine-Westphalia, Germany. It is part of the District of Warendorf and is economically the most important town in that district. Ahlen is part of the larger Münster region, and of the historic Münsterland area. The nearby villages of Dolberg, Vorhelm and Tönnishäuschen are part of Ahlen, as well. The largest neighboring town is the city of Hamm to the southwest.