Palatine German (Standard German: Pfälzisch [ˈp͡fɛlt͡sɪʃ] ^ⓘ, endonym: Pälzisch) is a group of Rhine Franconian dialects spoken in the Upper Rhine Valley, roughly in the area between Zweibrücken, Kaiserslautern, Alzey, Worms, Ludwigshafen am Rhein, Mannheim, Odenwald, Heidelberg, Speyer, Landau, Wörth am Rhein and the border to Alsace and Lorraine, in France, but also beyond.

The English term Palatine refers to the Palatinate region (German: Pfalz). Almost all traditional dialects of the Palatinate belong to the Palatine dialect group, but the Palatine speech area also extends to the west and east into neighboring regions (Saarland, Kurpfalz, southern Hesse). The main dialect divisions within Palatine German are Westpfälzisch (also called Hinterpfälzisch) and Vorderpfälzisch (also called Ostpfälzisch).

The Pennsylvania Dutch language is descended primarily from the Palatine German that was spoken by Palatines who immigrated to North America from the 17th to the 19th centuries and maintained their native language. Danube Swabians in Croatia and Serbia also use many elements of Palatine German.

To the northwest, Palatine German is separated from Moselle Franconian by the das/dat-isogloss (Palatine German uses das or similar forms) and the absence of Rhenish pitch accent. To the southeast, it borders on South Franconian, separated by the Appel/Apfel-line (Palatine German: Appel). Within the greater Rhine Franconian dialect area, the traditional defining isoglosses are the northern fescht/fest-line that separates Palatine German (fescht) from the Hessian dialects (fest), and the southern Haus/Hus-line that separates Palatine German (Haus) from Lorraine Franconian (Hus).

Like other Rhine Franconian dialects, Palatine German has e-apocope (i.e. loss of earlier final -e), n-apocope (i.e. loss of earlier final n in the suffix -en) and /oː/ for earlier long a, e.g. Strooß/Strooße 'street'/'streets' (cf. Standard German Straße/Straßen). The major division of Palatine German into Westpfälzisch and Vorderpfälzisch is based on a bundle of distinguishing features, such as:

Here are some words in Palatine German with their Standard German equivalents:

This sentence is pronounced in Vorderpfälzisch:

Isch habb's'm [habb es em] schunn vazehlt, awwa 'r [er] hat ma 's [es] nit geglaabt.