What Kou means
Kou has more than one naming route in the cited origin entries: distinct naming traditions.
The naming story behind Kou
One of the source’s documented entries for Kou records a meaning of gold.
A separate documented entry treats Kou as a alternate transcription of Kanji. That is a personal-name relationship, which differs from translating the letters of the modern spelling into one universal English word. The linked origin entry identifies the context of this relationship.
American usage and historical context
In the United States, 691 boys were recorded with the name Kou between 1979 and 2017. Its highest annual count was 48 in 1992; its best national rank was #1,713 in 1981.
In the United States, 33 girls were recorded with the name Kou between 1981 and 1992. Its highest annual count was 7 in 1981; its best national rank was #8,557 in 1981.
Sources & methodologyReferences, data & attribution
Meaning, origin, and language notes draw on the references below.
American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.