Caio — Dog Name Meaning, Origin & Popularity
Caio (KAI-oh), 1 syllable — A name of Portuguese origin meaning 'rejoice'.. Verified by the Pets In The City editorial team, with real popularity data from our Auckland community.
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What does Caio mean?
Modern: A name of Portuguese origin meaning 'rejoice'.. Caio is derived from the Latin name 'Gaius', which means 'rejoice'. It is commonly used in Portuguese-speaking countries.
Our editors checked this meaning before publishing. Names with several genuine origins are shown as separate senses rather than a single claim.
Is Caio a good dog name?
Caio has not been formally rated for calling yet. As a rule of thumb, one or two clear syllables work best for recall. With 1 syllable, it is quick to say — a practical length for recall.
Before you commit, say it out loud a few times and check it does not clash with a household name or a training cue like "sit" or "no".
Caio popularity in the Pets In The City community
We don't have publishable popularity figures for Caio in our Auckland community. This does not tell us how common the name is.
Popularity comes from anonymised, aggregated records of dogs at our 5 Auckland centres. It reflects our community, not a national census.
What kind of dog does Caio suit?
It is most often used for boy dogs in our community. Owners often pick Caio for its modern, human name feel. Treat these as suggestions — plenty of dogs happily wear names that break every rule.
Caio the Toy Expert
Our entirely unscientific pack opinion.
When Caio arrived at the Dog Hotel, everyone said, 'With a name that means ‘rejoice,’ he must throw the best parties—and definitely knows how to pick the squeakiest toys!'
Names similar to Caio
- Abe — A diminutive of Abraham, meaning 'father of many'.
- Addie — Diminutive of Adelaide, meaning 'noble kind'.
- Aide — A person who helps or assists another.
- Aiya — A name of Japanese origin meaning 'love' or 'affection'.
- Alee — A variant of the name Ali, meaning 'exalted.'
- Amiee — A variant of the name Amy, meaning 'beloved.'
- Anslie — A variant of the name Ainsley, meaning 'one's own meadow'.
- Arlee — Variant of the name Arley, meaning 'hare meadow'.
Collections featuring Caio
See all curated collections.
Like Caio? Find names that fit your dog
The Dog Name Matchmaker learns your taste and picks eight names that suit your dog's character — each with a reason it fits.
Naming a new puppy?
A great name is step one. Step two is a great start: our force-free puppy training classes build confidence and recall (that new name gets a workout). New to Pets In The City? Register your dog for a temperament assessment and meet the pack.
By the numbers
- 1 syllable — quick to call
- Meaning and pronunciation verified by our editors
- Data from 5 Auckland Pets In The City centres
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