Hahnheim
Municipality
Coat of arms
Location of Hahnheim within Mainz-Bingen district
Hahnheim Show map of Germany Hahnheim Show map of Rhineland-Palatinate
Coordinates: 49°51′38″N 8°14′12″E / 49.86056°N 8.23667°E / 49.86056; 8.23667
Country	Germany
State	Rhineland-Palatinate
District	Mainz-Bingen
Municipal assoc.	Rhein-Selz
Government
• Mayor (2019–24)	Werner Kalbfuß[1] (SPD)
Area
• Total	6.39 km2 (2.47 sq mi)
Elevation	124 m (407 ft)
Population  (2022-12-31)[2]
• Total	1,555
• Density	240/km2 (630/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
Postal codes	55278
Dialling codes	06737
Vehicle registration	MZ
Website	www.hahnheim.de

Hahnheim is an Ortsgemeinde – a municipality belonging to a Verbandsgemeinde, a kind of collective municipality – in the Mainz-Bingen district in Rhineland-Palatinate, Germany.

Hahnheim lies between Mainz and Worms on the river Selz. The winegrowing centre belongs to the Verbandsgemeinde Rhein-Selz, whose seat is in Oppenheim.

The council is made up of 17 council members, counting the part-time mayor, with seats apportioned thus:

(as at the municipal election held on 9 June 2024)

The municipality's arms might be described as thus: Per fess gules and argent, a cock repassant counterchanged.

In the countryside towards Köngernheim on the highway going towards Bundesstraße 420 is an old Jewish graveyard.

In the countryside, especially along the Selz and on the former Alzey–Bodenheim railway right-of-way – the “Amiche” – several biotopes have been established.

The municipality is crossed by the L 432 state road. Bundesstraße 420 lies 2 km to the south. The A 60 and A 63 autobahns can be reached by car in 20 and 10 minutes respectively.

• Municipality’s official webpage (in German)