Börje is an old Swedish male name. It is a cognate of Birger; Börje is the form that has developed naturally according to the sound change laws of Swedish, whilst Birger is a literary form that has been common since the nineteenth century, when archaic forms of names became fashionable. Etymology. The etymology of Börje is uncertain. Probably it is a short form of names beginning with Berg-. Less likely it means "helper", from the verb bärga. It has also been suggested that it is derived from the name element -ger (spear). Sound changes.
https://en.wikipedia.org/wiki/B%C3%B6rje