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What does Rex mean?

Rex Pronunciation of Rex [rex] as a boys' name is pronounced reks. It is of Latin origin, and the meaning of Rex is "king". Mostly 20th-century use. Actor Rex Harrison; film critic Rex Reed.

Associated with: king, 20th century (modern), reed (meadow).


Rex has 1 variant: Reyes.

Affiliated boy name: Rey.

2 feminine forms: Rexanne and Rey.

Creative forms:
(male) Orex, Redi, ..

(female) Ran, Rean, ..

Middle name pairings:
Rex Clayton (R.C.), ..

How popular is Rex?

Rex is a very popular first name for men (#333 out of 1220, Top 27%) and also a very popular last name for both adults and children (#5824 out of 150436, Top 4%). (2000 U.S. Census)

Rex reached its peak rank of #198 in the U.S. during 1950-1959, and is currently at #682. (2015 Birth Statistics)

Top 2000 baby names ranking of Rex name in U.S.

Top 100 baby names ranking of Rex outside U.S.

Which version is better?

with its variant form and related boy names. Rey (#903 via latest list) and Reyes are the popular related forms of Rex (#682 via latest list) ranked in the Top 2000. These forms of Rex were favored 65 years ago (average #884) and are now much less common (#1195, 55%), with the version Rex becoming less trendy. Rex is the firm favorite, though Rey has become trendy as well over time.

Top 2000 baby names ranking of Rex, Rey, Reyes in U.S.

Top 100 baby names ranking of Rex and related baby names outside U.S.

Similar Names

Suggested similar names are Dex, Lex, Reg, Rei, Ren, Reo and Tex. These names tend to be less frequently used than Rex.

See names
in meaning and etymology.