Appenheim (German pronunciation: [ˈapn̩haɪm]) is an Ortsgemeinde – a municipality belonging to a Verbandsgemeinde, a kind of collective municipality – in the Mainz-Bingen district in Rhineland-Palatinate, Germany.

The municipality lies southwest of Mainz and is an agricultural community. The winegrowing centre belongs to the Verbandsgemeinde of Gau-Algesheim, whose seat is in the like-named town. Through the municipal area flow both the rivers Welzbach and Wethbach.

In 882, Appenheim had its first documentary mention in the Prüm Abbey’s “Golden Book”.

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

Elections in 2014:

The Appenheim kermis (church consecration festival, locally known as the Kerb) is always held in early June.

The municipality is crossed by Landesstraße (state road) 415. The Autobahnen A 60 and A 63 can be reached by car in ten to twenty minutes.

There are a municipal kindergarten and a primary school, Grundschule Welzbachtal.