boys:
12 births since 1928
#4574 (0th percentile)
overall:
12 births since 1928
#7727 (0th percentile)
The name Costanzo is the #7,727 most popular name of all time in the U.S. on a gender-neutral basis, with a total of 12 recorded births since 1928. This represents the 0.1% percentile of name popularity (more popular than 0.1% of all names). For boys, it ranks #4,574 (0.2% percentile) for all time with 12 births since 1928.
Costanzo first appeared in U.S. birth records in 1928 (first recorded for boys in 1928). Birth data for Costanzo is available in 2 out of the 5 years between 1928 and 1932. The Social Security Administration only reports birth data for years in which the name was given to at least five children of the same gender.
For boys, Costanzo reached its peak popularity in 1928, achieving the 0.4% percentile (ranked #541) with 6 births per million. The name was most common in 1928, with 6 births per million (ranked 0.4% percentile). There have been no recorded male births with this name since 1932.
This chart shows the total number of births per million babies in each year for the name "Costanzo".
These names exclude other spelling variations of this name. View all variations of Costanzo.
These similar-looking names have spellings that are closest to the spelling of "Costanzo", in the sense that there are the fewest number of letter differences between the two spellings. These names exclude other spelling variations of this name. View all variations of Costanzo.
Our model has identified 12 different pronunciations for the name Costanzo. Click the play button under each pronunciation to hear it spoken aloud.
Our model is 23.8% confident that Costanzo is pronounced as koh-STAHN-zoh, which has 3 syllables. The next most likely pronunciation is kah-STAHN-zoh, at 16.7% confidence, with 3 syllables.
If none of the pronunciations above sound right to you, could you please check whether any of these related pronunciations should be applied to the name Costanzo? These are pronunciations that other similar names use, but which are not currently associated with Costanzo. If you think any of these are valid pronunciations for Costanzo, please vote using the thumbs up button.
Our confidence scores estimate the likelihood that a particular pronunciation is the most correct for a given name spelling. These scores are derived from pronunciation dictionaries, manual verification, your feedback, and a fine-tuned large language model trained to generate name pronunciations.
For any given spelling, confidence scores across all identified pronunciations sum to 100%. However, these scores don't account for the possibility of valid pronunciations that our model hasn't identified.
The raw pronunciations shown (like K OW0 S T AA1 N Z OW0) use the ARPAbet phoneme system, a standardized way to represent English speech sounds. Each symbol represents a distinct sound in American English. Visit the ARPAbet Wikipedia page to learn more about these phonetic symbols.
Pronunciation audio is generated by an open source text to speech model that has been customized to adhere to pronunciations provided in ARPAbet format, but sometimes pronunciations that differ subtly will sound identical, particularly if the only difference is the level of emphasis on a syllable or a single vowel sound.
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