North Germanic peoples, Nordic peoples and in a medieval context Norsemen, were a Germanic linguistic group originating from the Scandinavian Peninsula. They are identified by their cultural similarities, common ancestry and common use of the Proto-Norse language from around 200 AD, a language that around 800 AD became the Old Norse language, which in turn later became the North Germanic languages of today.

Old Norse religion, also known as Norse paganism, is a branch of Germanic religion which developed during the Proto-Norse period, when the North Germanic peoples separated into a distinct branch of the Germanic peoples. It was replaced by Christianity and forgotten during the Christianisation of Scandinavia. Scholars reconstruct aspects of North Germanic Religion by historical linguistics, archaeology, toponymy, and records left by North Germanic peoples, such as runic inscriptions in the Younger Futhark, a distinctly North Germanic extension of the runic alphabet. Numerous Old Norse works dated to the 13th-century record Norse mythology, a component of North Germanic religion.