Prekmurian, also known as the Pannonian-Slovene, East-Slovene, or Wendish (Slovene: prekmurščina, prekmursko narečje, Hungarian: vend nyelv, Prekmurian: prekmürski jezik, prekmürščina, prekmörščina, prekmörski jezik, panonska slovenščina) is a supradialectal regional literary language, classified as Slovene. It is used in private communication, in liturgy, and in publications by authors from Prekmurje. It is spoken in the Prekmurje region of Slovenia and by the Hungarian Slovenes in Vas county in western Hungary. It is closely related to the Slovene dialects in neighboring Slovene Styria, as well as to the Kajkavian dialect of Croatian.

Prekmurian is one of the few Slovene dialects in Slovenia that is still spoken by all strata of the local population. It also had its own written standard and a literary tradition, both of which were largely neglected after World War II. There are divergent opinions regarding the status of Prekmurian. Some consider Prekmurian a regional language, without denying that it is part of Slovene.^{[clarification needed][who?]} However, Prekmurian is not recognized as a language by Slovenia or Hungary, nor does it enjoy any legal protection under the European Charter for Regional or Minority Languages. There is no significant political or cultural movement in Slovenia seeking legal protection for Prekmurian, although there has been a revival of literature in Prekmurian since the late 1990s. Some Slovene writers from Prekmurje, most notably Feri Lainšček, regard Prekmurian as a regional language.