The Kolliger mill (German: Kolliger Mühle) is a watermill in Kollig, in the German Eifel region, west of Koblenz and from the river Moselle.
The water wheel of the Kolliger Mühle is driven by the water of a small river, the German: Elzbach, also called the German: Elz. It is one of a great number of watermills in the Eifel region. Other watermills in the neighbourhood are the German: Gehringer Mühle and the German: Ölmühle.
The oldest part of the mill probably dates from the 17th century. In the course of the centuries restorations have taken place but always bearing in mind the historic aspect of the place.
There are four buildings on the site of the Kolliger mill: the German: Wirtschaftsgebäude with the central heating installation and the water supply device, the residence (German: Wohnhaus) with the water wheel, a former hen house and a former pigsty. The hen house and the pigsty have been renovated and made fit to live in. The pigsty is now the home of the owners and the former hen house is used as guesthouse (German: Gästehaus).
The walls of the buildings are half-timbered with slate between the timbers. The roofs too are covered with slate. Between the houses is an inner courtyard paved with cobblestones and with a fountain in the middle. There is a small chapel at the entrance of the grounds.
A branch of the famous historic pilgrim route to Santiago de Compostela (the Way of Saint James) runs along the Kolliger mill. Here, pilgrims can find a shelter for the night.