About the name Yuko
Yuko belongs to the Portuguese 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, Yuko first appears in Social Security records in 1969. It climbed to its best-ever rank of #4418 in 1969, and in 2024 0 babies received the name — 157 in total since 1880. Those are the official counts, not estimates.