Michio
Boys' nameMeaning not yet documented
Michio has been given to 90 babies in the U.S. since 1915. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 1932, with 8 recorded.
Babies named Michio, 2011
1 in 732,000
Michio over time, 1880–2025
Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
How common is Michio?
Michio had fewer than 5 recorded uses in 2025, so these figures use 2011, the last year it was published.
- Among all babies, 2011
- 1 in 732,000
- 5 of 3,657,935 births
- Among boys only
- 1 in 380,000
- <0.01% of boys
- Rank, 2011
- Unranked
- Fewer than 5 uses
- Coin-flip room size
- 507,099 kids
- Even odds of a second one
Where Michio sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2011 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 507,099 children born in 2011 and it's an even bet that one of them is another Michio. In a class of 30 the chance is Under 1%.
When Michios were born
Half of everyone ever recorded as Michio was born before 1929 — so the typical Michio is around 96 today.
- Biggest decade
- 1920s
- 51.1% of all use
- Born in the last 25 years
- 5.6%
- Mostly a past generation
- Recorded since 1950
- 5
- People you could plausibly meet
1920s — 51.1% of all recorded uses (46).
Is Michio rising or falling?
Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.
- Rank vs 1 year ago
- —
- Not ranked then
- Rank vs 5 years ago
- New entry
- Not ranked then
- Rank vs 10 years ago
- —
- Not ranked then
- Births vs 10 years ago
- —
- Not published both years
- Share of its own peak
- 0%
- Peak was 1932 (8)
- Years since peak
- 93
- Years
- Year-to-year steadiness
- Shifting
- 18.4% average annual change
Spellings of Michio
Michio is not the most common spelling — Michel is, with 38.2% against Michio's 0.33%.
Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.
Where Michio is used
Across 1910–2025, Michio was most concentrated in Hawaii — about 1 in 100,000 boys, against 1 in 899,951 across all states with data. It was least common in California (1 in —).
Most concentrated
- 1Hawaii1 in 100,000
- 2California1 in —
Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Michio has too little recent state data to map, so this covers all years from 1910.
Michio by the numbers
The raw record for each sex the name is used for.
Names similar to Michio
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Michio
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.