Jensen is a Danish and Norwegian surname that means "son of Jens", and Jens is the Scandinavian form of John, "God is gracious". It is the most common surname in Denmark and fits the American taste for surname-style names ending in -son. Jensen has been in the US top 1000 since 2008, moved from number 395 in 2015 to 282 in 2025 and reached its highest rank yet this year.