Hainau may refer to:
*
Chojnów
Chojnów (german: Haynau, Silesian German: Hoyn, Silesian language: ''Chojnůw'') is a small town in Legnica County, Lower Silesian Voivodeship, in south-western Poland. It is located on the Skora river, a tributary of the Kaczawa at an ave ...
, Poland, ''Hainau'' in German
*
Hainau, Germany
Hainau is a municipality in the district of Rhein-Lahn, in Rhineland-Palatinate, in western Germany
Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Eur ...
, in Rhein-Lahn-Kreis, Rhineland-Palatinate
*The
County of Hainaut
The County of Hainaut (french: Comté de Hainaut; nl, Graafschap Henegouwen; la, comitatus hanoniensis), sometimes spelled Hainault, was a territorial lordship within the medieval Holy Roman Empire that straddled what is now the border of Belg ...
, as spelled in the oldest documents
{{place name disambiguation