Jenson is of Scandinavian origin, derived from the Old Norse personal name Jens, which itself is a diminutive of Jan, meaning 'God is gracious'. The name was introduced to England during the Norman Conquest in 1066, but it has since gained popularity worldwide. It is often associated with the British Formula One racing driver, Jenson Button.
The name Jenson has seen a significant increase in popularity since the late 1970s, with a steady rise from the early 1980s to a peak in 2021, following a general trend of more names being used overall as the population grows. The most notable spikes occurred around the years 2004, 2016, and 2021, with 2021 seeing the highest number of births given the name Jenson at 181.