What does the last name "Rei" mean?

Question: What does the last name "Rei" mean!?

i know somebody who has this last name and it isnt exactly common !.!.so !.!.what does it mean!?
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Best Answer - Chosen by Asker:

I cannot find it as a last name, only a first name but the meaning is quite probably the same!.

Rei: First name origins & meanings:

Japanese: Gratitude
Japanese: Law
Latin: King
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Rei means "king" in Spanish!.Www@QuestionHome@Com

rei means "king" in portuguese, not spanishWww@QuestionHome@Com