Kei

Meaning & origin

Kei is a rare and versatile name with multiple cultural roots that give it a range of meanings. In the United States, it has been recorded since 1920, but it remains uncommon. As of 2025, Kei ranks 6,143rd, with an incidence of about 1 in 122,005 births. Its most popular year was 2015, after which its use has declined. While often associated with Japanese origins, it also has Hawaiian and Welsh connections, offering a multicultural appeal. The name's brevity and simplicity make it easy to pronounce across languages. Top states for Kei are not available due to its rarity, but it is found scattered across the country. For parents seeking a short, unique name with global resonance, Kei is a intriguing option that blends simplicity with depth of meaning.

Kei is a unisex name with multiple origins. In Japanese, it is a short form or standalone name that can be written with various kanji characters, each giving a different meaning, such as 恵 (blessing, favor), 敬 (respect), 慶 (joy, congratulations), or 圭 (wise, jewel). As a Hawaiian name, it means 'the sea' or 'seashell,' and is often used for both boys and girls. In Welsh, Kei is a variant of Cai or Kay, derived from the Arthurian legend figure Sir Kay, meaning 'keeper of the keys.' The name has been used in Japan for centuries and gained some international exposure through popular culture, but remains more common in Japan and Hawaii.