Thoran is of Norse origin, derived from the Old Norse 'Þórr' and the suffix '-an'. It translates to 'Thor's man', Thor being the god of thunder in Norse mythology. The name was likely borne by Vikings who were followers or descendants of Thor.
"Thoran saw a decrease in popularity from 11 births in 2014 to 6 births in 2019, with a total of 17 babies named Thoran born during these years."