Haslach
Haslach (also spelled Haßlach) is a German word derived from Old High German hasala ("hazel") and aha ("running water"). It may refer to:
 Places
 Haslach, a former town in Alsace, France, consisting of modern Niederhaslach and Oberhaslach
 Haslach (Freiburg), part of the city of Freiburg im Breisgau, Germany
 Haslach an der Mühl, a municipality in the Rohrbach district in Austria
 Haslach im Kinzigtal, a municipality in the district Ortenaukreis, Baden-Württemberg, Germany
 Rivers
 Haslach (Rot), an eastern tributary to the river Rot in Upper Swabia, Baden-Württemberg, Germany
 Hasslach, a river in Bavaria, Germany
 People
 Patricia M. Haslach (born before 1988), U.S. diplomat
 Other uses
 Battle of Haslach-Jungingen, fought 1805 at Ulm-Jungingen near the Danube between French and Austrian forces during the War of the Third Coalition
 Gunz-Haslach interglacial, a warm period of the Pleistocene epoch preceding the Haslach glaciation
 Haslach glaciation, a cold period of the Pleistocene epoch
 Haslach-Mindel interglacial, a warm period of the Pleistocene epoch following the Haslach glaciation