Vagn is an Old Norse masculine forename, meaning 'wagon'. In Norwegian, the name means . It was the name of a famous 10th-century Jomsviking, Vagn ÃÂ kesson.
The Old Norse was revived in modern Scandinavia, the first modern bearer of the name on record being Vagn Ekman (1874-1954), a Swedish oceanographer. The name became popular in Denmark during the 1920s and 1930s.