Every name given to a US baby since 1880, ranked year by year — straight from Social Security Administration birth records. 105,966 names · 375,362,447 births · public domain.

Ko*

#16,523 most common boys' name of all time · #43,110 across all names · 88% male / 12% female · used 1985–2021 · notable crossover

Rank among boys
#16,523
Rank overall
#43,110 of 105,966
First appeared
1985
Years on the list
15 of 146
All-time
85
Since 2016
26
Peak year
2016 #9,126
Best rank
#6,997 1990
Girls Boys peak 8/yr
20002020

Ko first appears in 1985. That's the first year it was given to at least 5 US babies, which is the threshold below which the SSA withholds a name.

Year by year

YearGirlsBoysTotalRank
2021 — 6 6 #11,230
2020 — 7 7 #9,946
2019 — 5 5 #12,772
2016 — 8 8 #9,126
2015 — 5 5 #12,683
2011 — 5 5 #12,963
2010 — 5 5 #12,901
2008 — 5 5 #13,249
1993 5 — 5 —
1992 — 5 5 #9,235
1991 — 7 7 #7,070
1990 — 7 7 #6,997
1989 — 5 5 #8,817
1988 5 — 5 —
1985 — 5 5 #7,515