Koichi
Recorded for boysSilent Generation2025 rank
—
not recorded in 2025
2025 births
—
All-time births
145
peak year 1921
More common than
67%
of all archived spellings recorded for boys, by lifetime births for that sex
- Peak year
- 1921
- 16 births
- Best rank
- #2,110
- in 1921
- First recorded
- 1914
- #3,523 that year
- Last recorded
- 2007
- no later published record
- Average birth year
- 1930
- weighted by recorded births
- Years recorded
- 18 of 146
- with gaps
Top five years
- 192116#2,110Peak
- 191812#2,470
- 191912#2,435
- 192312#2,532
- 192411#2,749
Rank over time
Inverted scale — nearer the top is more popular. Unrecorded years are left blank, not drawn as zero.
Best rank #2,110 in 1921 · peak births 16 in 1921
Births by decade
Where the name's whole run sits, with the best and worst rank it held in each decade
Trajectory by decade
Where Koichi has ranked, decade by decade
The band spans each decade's best and worst rank; the line follows its best.
The girls' series
No girls have been recorded with this name.
Stated, not plotted as zero — the split bar and the unisex badge are omitted rather than drawn empty.