That depends on which transport company you were using. If you were travelling by bus or train, please enquire here to find out how you go about getting your lost property back. If you’ve forgotten something in a SIXT share or MILES vehicle, please contact the relevant customer service.
MOIA hands in lost property to Hamburg’s main lost property office. You can contact this office directly:
Central Lost Property Office of the Free & Hanseatic City of Hamburg
Bahrenfelder Strasse 254-260 22765 Hamburg
Phone +49 (40) 4 28 11-35 01
By the way, you can also search for the lost item online at www.fundbuero.hamburg.de.