Rex
Pronunciation: [ r-EHKS ]
Does Rex flow with your last name?
A distinctive girl name with a rare, memorable quality.
Reviewed by the NamingEverything Editorial Team · Updated
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Meaning & Origin
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Start comparing →Historical Record
Rex first appeared in US Social Security records in 1952.
Over 85 babies have been named Rex in the United States since SSA records began.
Today, Rex is a hidden gem — rare but distinctive , currently ranked #37,784 for girl names in the US .
Popularity Over Time
Year-by-year popularity data will be available soon.
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See all →"spear ruler, noble one"
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"dark one, descendant of Dubhthach"
"cultivated field, arable land"
Compare Rex with:
Quick Facts
- Gender
- Girl
- Popularity Rank
- #37,784
- Total SSA Count
- 6
Middle Name Ideas
Suggested pairings based on syllable flow and style
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Timeless choice, quick 1-1 syllable combo
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Classic pairing, smooth 1-2 syllable flow
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Timeless choice, quick 1-1 syllable combo
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Timeless choice, smooth 1-2 syllable flow
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Timeless choice, quick 1-1 syllable combo
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Timeless choice, quick 1-1 syllable combo
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Classic pairing, smooth 1-2 syllable flow
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Classic pairing, smooth 1-2 syllable flow
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Timeless choice, smooth 1-2 syllable flow
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Timeless choice, smooth 1-2 syllable flow
Sibling Match
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Also a Boy Name
Rex is also used as a boy name, ranked #793.
View Rex as a boy name →Similar Names
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View all →Germanic origin
"spear ruler, noble one"
#37,862 in US
American English origin
"freedom fighter, revolutionary (cultu..."
#37,631 in US
Irish Gaelic O'Fearghail origin
"man of valor, super valor"
#37,859 in US
Irish Gaelic origin
"dark one, descendant of Dubhthach"
#37,978 in US
Latin origin
"cultivated field, arable land"
#37,700 in US
Greek via Spanish origin
"Crown or garland; diminutive of Steph..."
#37,858 in US
Save Your Name Card
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Frequently Asked Questions About Rex
Is Rex a boy or girl name?
How do you pronounce Rex?
How popular is the name Rex?
Is Rex a common or rare name?
About the Name Rex
Rex is a girl name .
Is Rex a boy or girl name? Rex is used as both a girl and boy name. As a girl name, it ranks #37,784 in popularity. As a boy name, it ranks #793. Rex is more commonly used as a boy name.
Rex is currently ranked #37,784 in popularity for girl names in the United States.
Keep Exploring
Recommended for Parents
Start a registry
Free welcome box on Amazon
Baby Name Wizard
Names that actually age well
Nursery name sign
Personalized wooden letters
We may earn a commission from these links.
Sources
- U.S. Social Security Administration — National Baby Names Data (popularity rankings and historical trends)
- NamingEverything editorial research and analysis