Kei is a Japanese unisex name with a variety of meanings depending on the kanji used:
- kei 慧 “wise”;
- kei 圭 “square jewel; corner, angle, edge”
- kei 恵 “favor; blessing, grace”;
- kei 景 “view, scenery”;
- kei 京 “capital city; 1016″
There are other meanings depending on the kanji used. Written in hiragana it’s けい.