Rex - name meaning and origin

The boy's name Rex \rex\ is pronounced reks. It is of Latin origin, and its meaning is "king". Mostly 20th-century use. Actor Rex Harrison; film critic Rex Reed.

Rex has 1 variant form: Reyes.

For more information, see also the related name Rey.

Baby names that sound like Rex are Regis and Rochus.

Rex is a popular male first name and a very popular surname (source: 1990 U.S. Census). Displayed below is the baby name popularity trend for the boy's name Rex. Compare Rex with related baby names.