Jenn is of American origin, derived from the English word 'Jennet', which was used to describe someone who was small and delicate like a little gem. It is also considered a shortened form of Jennifer, a name of Welsh origin that means 'fair or smooth'. Jenn is a popular choice for girls in the United States, often seen as a modern and independent-sounding name.
The name Jenn experienced a brief spike in popularity with five births each in 1971 and 1972, followed by a gap until the late 1980s when it gained some traction again with six births in 1984 and seven in 1988. After another gap of nearly four decades, Jenn saw five births once more in 2023, bringing its total to 28 recorded births across these years.