Of Nordic origin.
Frey is a variation of the name “Freyr”.
In Old Norse, “freyr” had two meanings:
1) from association with “frauja”, translated as “master”, “lord”.
2) from the Proto-Norse word “fraiwia”, meaning “fertile”.
According to the Scandinavian mythology, Freyr was the god of fertility, son of Njǫrðr, brother of Freyja, husband to the giantess Gerðr.
Freyr and his sister belonged to the Vanir deities.
Other forms of the name are Frej and Freyr.
Feminine forms of the name are Freya, Freyja.
Frey is ranked #15 in Scotland and #320 in U.S.A.