Kei is of Japanese origin, meaning 'respectful' or 'admirable'. It's composed of two Kanji characters: 'けい', which signify 'respected' or 'venerable'. Kei is often used as a unisex name in Japan but is more commonly given to boys. Pronounced 'kay-eh', it carries a strong, confident sound.
The name Kei experienced fluctuating popularity over the years, with a significant spike in 1994 and consistent appearances from the late 1970s to the present day.