In English, name Rex means – Diminutive of Reginald: Mighty counselor-ruler.. Other origins for name Rex include – English, Latin-American. Name Rex is most often used as a boy name or male name.
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In English, name Rex means – Diminutive of Reginald: Mighty counselor-ruler.. Other origins for name Rex include – English, Latin-American. Name Rex is most often used as a boy name or male name.