Iwao

Popularity Trends

The name Iwao is the #7,561 most popular name of all time in the U.S. on a gender-neutral basis, with a total of 178 recorded births since 1914. This represents the 2.3% percentile of name popularity (more popular than 2.3% of all names). For boys, it ranks #4,408 (3.8% percentile) for all time with 178 births since 1914.

Iwao first appeared in U.S. birth records in 1914 (first recorded for boys in 1914). Birth data for Iwao is available in 19 out of the 23 years between 1914 and 1936. 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, Iwao reached its peak popularity in 1921, achieving the 2.7% percentile (ranked #535) with 18 births per million. The name was most common in 1921, with 18 births per million (ranked 2.7% percentile). There have been no recorded male births with this name since 1936.

This chart shows the total number of births per million babies in each year for the name "Iwao".

1914 1936 19141936

Key Statistics

Total Births

178

Peak Births

Peak Year

1921

First Recorded

1914

Peak Percentile

2.7%

Current Percentile

—

Peak Rank

#535

Current Rank

—

Male statistics

Names That Sound Similar

These names exclude other spelling variations of this name. View all variations of Iwao.

Names with Similar Spellings

These similar-looking names have spellings that are closest to the spelling of "Iwao", 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 Iwao.

Names with Correlated Trends

These 12 names have popularity trends that correlate most strongly with the name Iwao's popularity from 1911 to 1939 on a gender-neutral basis. Names may rise and fall in popularity for a variety of reasons, but correlations often reflect either changes in naming fashion or demographic shifts.

The correlation calculations in the table below ignore absolute popularity to show you names that move in similar directions as the name Iwao at the same time. They also correct for changes in the overall birth rate over time. The 0-100% trend values are calculated by dividing each name's gender-neutral births per million by the peak births per million for that name.

The 12 names most strongly correlated to Iwao range from Mitsue at 94.7% correlation to Fumiko at 91.2% correlation, with an average correlation level of 92.3%. The most popular of these 12 most correlated names is Kiyoko with 905 births (100% girls) and the least popular is Koichi with 145 births (100% boys).

Iwao's share of births peaked at 17.6 births per million for boys in 1921. It reached its lowest point of 4.4 births per million (25% of peak) in 1928. In 1936, the most recent period with data, the name Iwao had 4.7 births per million, 27% of its peak popularity.

This chart shows how each name's popularity has changed over time relative to its peak (100%).

Mitsue

358

94.72% (very strong)

Kaoru

251

92.97% (very strong)

Kiyoko

905

92.92% (very strong)

Koichi

145

92.42% (very strong)

Yoshiye

155

92.39% (very strong)

Yoshie

395

92.07% (very strong)

Lavergne

543

92.03% (very strong)

Minoru

675

92.02% (very strong)

Toshio

737

91.80% (very strong)

Haruo

376

91.75% (very strong)

Yoneko

202

91.31% (very strong)

Fumiko

721

91.21% (very strong)

About this table: Correlation values are shown as percentages from 0% to 100%, with each value accompanied by its strength (very weak to very strong). Higher percentages and stronger correlations indicate names that rise and fall together more closely in popularity. The strength labels are color-coded from gray (very weak) to green (very strong). The Trend column visualizes how each name's popularity has changed over time relative to its peak. Absolute correlation values are shown for simplicity (all correlations here are positive). The Total Births column is color-coded by gender distribution - blue shades for predominantly male names and red shades for predominantly female names, with purple hues indicating a more balanced gender distribution.

How to Pronounce Iwao

Our model has identified 5 different pronunciations for the name Iwao. Click the play button under each pronunciation to hear it spoken aloud.

Our model is 46.4% confident that Iwao is pronounced as ee-WAH-oh, which has 3 syllables. The next most likely pronunciation is EE-wow, at 21.4% confidence, with 2 syllables.

46.4%

21.4%

14.3%

10.7%

7.1%

ee-WAH-oh (3 syllables)

46.4% confidence

IY0 W AA1 OW0

EE-wow (2 syllables)

21.4% confidence

IY1 W AW0

ee-WAW (2 syllables)

14.3% confidence

IY0 W AO1

EE-wah-oh (3 syllables)

10.7% confidence

IY1 W AA0 OW0

IH-wow (2 syllables)

7.1% confidence

IH1 W AW0

Possible Additional Pronunciations

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 Iwao? These are pronunciations that other similar names use, but which are not currently associated with Iwao. If you think any of these are valid pronunciations for Iwao, please vote using the thumbs up button.

About Pronunciation Data

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 IY0 W AA1 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.

Made with ❤️ by Aaron J Becker

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