Alzey is a town of 18,221 inhabitants (2005) in Rhineland-Palatinate, Germany. It is the administrative seat of the district of Alzey-Worms, and the fourth-largest town in Rheinhessen, after Mainz, Worms, and Bingen. Its main industries include winemaking (state wine school), psychiatric care (state mental health clinic), and supermarket distribution (distribution centers for real and Plus supermarket chains).