The Pennsylvania Dutch, also referred to as Pennsylvania Germans, are an ethnic group in Pennsylvania and other regions of the United States, predominantly in the Mid-Atlantic region of the nation. They largely descend from the Palatinate region of Germany, and settled in Pennsylvania during the 17th, 18th, and 19th centuries. While most were from the Palatinate region of Germany, a lesser number were from other German-speaking areas of Germany and Europe, including Baden-Württemberg, Hesse, Saxony, and Rhineland in Germany, the Netherlands, Switzerland, and the Alsace–Lorraine region of France.

Pennsylvania Dutch, sometimes referred to as Pennsylvania German, is a variation of Palatine German spoken by the Pennsylvania Dutch, including the Amish, Mennonites, Fancy Dutch, and other related groups in the United States and Canada. There are approximately 300,000 native speakers of Pennsylvania Dutch in the United States and Canada.