Sarchinger Weiher is a lake in Landkreis Regensburg, Bavaria, Germany.

In the surrounding area, there are several small lakes created by gravel quarrying.

The north-western, north-eastern, and south-western banks were filled up with sand to create a beach and make the water shallow for children.

The further lakesides are planted with trees and shrubs to provide sufficient shade.

In the middle of the southern half of the lake, there is a small island which over the last years and decades became a breeding zone for rare birds, e.g. the black-crowned Night Heron.