About the name Kiyoko
Kiyoko belongs to the Japanese tradition. Its roots are documented, even though its precise meaning is not recorded in the standard references — an honest gap we prefer to a confident guess.
In the United States, Kiyoko first appears in Social Security records in 1912. It climbed to its best-ever rank of #979 in 1921, and in 2024 10 babies received the name — 916 in total since 1880. Those are the official counts, not estimates.