Justun is an uncommon, unisex given name of Latin origin, derived from the Roman family name 'Iustinus'. The name is believed to have been borne by Justin I, a Roman emperor in the 6th century AD. Its popularity has been limited, making it unique and distinctive.
The name Justun experienced fluctuations in popularity over the decades, with peaks in the early 80s and mid to late 90s, but has since maintained a consistent low occurrence of around 5 births per year from 1995 onwards, contributing to a total of 129 births recorded between 1974 and 2004.