Rex is a distinctive boys' name in England & Wales, ranking #1485 in 1998 with 8 recorded births. The name reached its all-time peak in 2021 with 396 births ranking #142. In 1998, approximately 1 in every 38,809 boys born was named Rex. FALLING Recent data shows the name is currently falling.
Rex is a brisk, bold Latin name meaning king. Its strength comes from being so short and direct.
The word itself is ancient, but its use as a given name belongs more to the modern taste for compact, forceful names. It has remained recognisable through its unmistakable meaning.