Ku is a unisex name of Japanese origin, derived from the kanji character 久, which means 'long time' or 'eternity'. It is pronounced as /kuː/ in English. Ku is often used as a given name but can also be found as a surname. This name has gained popularity worldwide due to its simplicity and uniqueness.
"The name Ku experienced fluctuations in popularity over the decades, with birth occurrences peaking at seven in 1989 before declining to five annually from 1990 to 2015, then rising again to six in 2018."