Jenssen is a Norwegian patronymic surname meaning "son of Jens." The name traces back to the given name Jens, which is a Danish form of John, ultimately derived from the Hebrew name Yoḥanan, meaning "Yahweh is gracious." As a patronymic, Jenssen indicates lineage, with the root name used for identification.History and DistributionJenssen is primarily found in Norway, while its alternate spelling Jensen is more common in Denmark. The surname became established in the era when hereditary family names were adopted in Scandinavia. In Norway, patronymics like Jenssen were widely used until the 19th century, when fixed surnames became mandatory.Notable BearersNotable individuals with the surname Jenssen include Norwegian musician Geir Jenssen (known as Biosphere), Swedish singer Amanda Jenssen, and Norwegian politicians such as Hans Jørgen Darre-Jenssen. Others include footballer Heine Jenssen, American costume designer Elois Jenssen, and novelist Hans Wiers-Jenssen.Related FormsVariant spellings include the Danish Jensen and English Jenson. Related names in other languages mirror the same patronymic structure: Russian Ivanov (son of Ivan), Armenian Hovhannisyan (son of Hovhannes), and Belarusian Ivanoŭ. All derive from the given name John, reflecting the wide spread of this biblical name across Christian cultures.Meaning: Son of JensOrigin: Norwegian patronymicRoot name: Jens (Danish form of John)Usage: Norway; variant Jensen in DenmarkAlternate spellings: Jensen, Jenson, Janson