| Image Coa: | Wappen Offstein.png |
| Coordinates: | 49.6061°N 8.2381°W |
| Image Plan: | Offstein in AZ.svg |
| State: | Rheinland-Pfalz |
| District: | Alzey-Worms |
| Verbandsgemeinde: | Monsheim |
| Elevation: | 118 |
| Area: | 5.64 |
| Postal Code: | 67591 |
| Area Code: | 06243 |
| Licence: | AZ |
| Gemeindeschlüssel: | 07 3 31 054 |
| Website: | www.offstein.de |
| Mayor: | Andreas Böll[1] |
| Leader Term: | 2019 - 24 |
| Party: | SPD |
Offstein in the Wonnegau is an Ortsgemeinde – a municipality belonging to a Verbandsgemeinde, a kind of collective municipality – in the Alzey-Worms district in Rhineland-Palatinate, Germany.
The municipality lies in Rhenish Hesse and belongs to the Verbandsgemeinde of Monsheim, whose seat is in the like-named municipality. Geographically speaking, Offstein is located in the western area of the Rhine Rift Valley. The Eisbach, a small tributary situated west of the Rhine, runs through the southern part of the municipality. In terms of the type of settlement, Offstein is a clustered village. The lee of the surrounding low mountain ranges encourages its mild and arid climate. The fertile loess layers in this region render possible a productive agrarian economy.
The council is made up of 16 council members, who were elected at the municipal election held on 7 June 2009, and the honorary mayor as chairman.
The municipal election held on 7 June 2009 yielded the following results:[2]
| GfO | Total | ||||
| 2009 | 7 | - | 9 | 16 seats | |
| 2004 | 6 | 6 | 4 | 16 seats | |
| 1999 | 6 | 7 | 3 | 16 seats |
In the neighbouring hamlet of Neuoffstein, which belongs to Obrigheim, is found the Südzucker-Werk Offstein, a sugar factory and Offstein's most important employer.