Magnus, meaning "great" in Latin, was sometimes used as a first name among Romans but was not particularly common among them. The best-known Roman bearing the name was the third-century usurper. The name gained wider popularity in the Middle Ages, among various European peoples and their royal houses, being introduced to them upon being converted to the Latin-speaking Catholic Christianity. This was especially the case with Scandinavian royalty and nobility.

As a Scandinavian forename, it was extracted from the Frankish ruler Charlemagne's Latin name "Carolus Magnus" and re-analyzed as Old Norse magn-hús = "power house".

Magnus may refer to:

People

People with the sole name Magnus

Kings of Norway

Kings of Denmark

Kings of Sweden

King of Livonia

Dukes

Other

Saints

People with the family name Magnus

In fiction

People with the given name Magnus

In fiction

Pseudonyms

Other

See also