Pinnau
Amt
Map of Pinneberg highlighting Pinnau
Country	Germany
State	Schleswig-Holstein
District	Pinneberg
Region seat	Rellingen
Government
• Amtsvorsteher	Günther Hildebrand (FDP)
Area
• Total	4,824 km2 (1,863 sq mi)
Population  (2020-12-31)
• Total	13.624
Website	www.amt-pinnau.de

Pinnau is an Amt ("collective municipality") in the district of Pinneberg, in Schleswig-Holstein, Germany. The Amt Pinnau was formed in January 2007 by the merger of the Ämter Bönningstedt and Pinneberg-Land. The seat of the Amt is in Rellingen, itself not part of the Amt.

The Amt Pinnau consists of the following municipalities:

1. Borstel-Hohenraden
2. Ellerbek
3. Kummerfeld
4. Prisdorf
5. Tangstedt

53°41′N 9°50′E / 53.683°N 9.833°E / 53.683; 9.833