The surname Weil, Weill, or Weyl may refer to:
Weil is the name of the following German towns:
Weil may also refer to:
Weil is a municipality in the district of Landsberg in Bavaria in Germany.
It is home to one or more prehistoric pile-dwelling (or stilt house) settlements that are part of the Prehistoric Pile dwellings around the Alps UNESCO World Heritage Site.
The Weil is small 50 km long river in Hesse, Germany. It is a left tributary to the Lahn river and the city of Weilburg is located next to its mouth. The river flows exclusively through the Taunus mountain range with its source being located between the Kleiner Feldberg and Großer Feldberg mountains. It flows through Schmitten, Weilrod and Weilmünster. A hiking trail as well as a biking trail follow the course of the river.