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BabyNames
Boy name#429 of boy names

Rex

Pronounced R EH1 K S (ARPABET)

  • 1 syllable
  • Peaked 1951
  • 145 years in use
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How popular is Rex?

Rex is a boys' name, and has been in the record since the data starts in 1880. It has been given to 60,301 children — the 429th most common boys' name on record.

Its use has been broadly flat across the past two decades. Its best single year was 1951, when 1,503 children were given it.

05001,0001,5002,00018901920195019802010
1951Boys: 1,503Girls: 0

Characteristics

  • 1 syllable
Phonetic detail
Pronunciations:
R EH1 K S
Stress pattern:
1
Syllables:
1

Stress digits mark unstressed (0), primary (1) and secondary (2) syllables.

Names like Rex

Same first letter and syllable count, peaking around the same time.

Sibling names for Rex

Names from the same era with a matching rhythm but a different initial.

Frequently asked questions

How popular is the name Rex?
Rex ranks 429th among boys' names in US records, with 60,301 births since 1880. Over the past decade it accounts for 3,880.
Is Rex a unisex name?
No. Rex is recorded almost entirely as a boys' name; births to the other gender are too few to register as a share.
When was Rex most popular?
1951, when 1,503 children were given the name. It has been in use for 145 years and is still recorded as of 2024.