Bovenau is a village in the district of Rendsburg-Eckernförde, in the German state of Schleswig-Holstein.

Bovenau is only 16 metres (52 ft) above sea level.

The location is south of the municipality of Bünsdorf or Sehestedt, but north of Ostenfeld, Bredenbek, and west of Krummwisch, about 20 km (12 mi) away from the center of Kiel.

The name is derived from the Low German „boven de Au“, which means something like "above the creek".

The Maria Magdalena Church[3] and the lock of the old Eider Canal in Kluvensiek[4][5] are worth seeing.