Globally, Kî (Qui 
, Kî 
) is quite a common largely masculine, but uncommonly female first name. The first name Kî is habitual in Vietnam, where it is quite a rare predominantly masculine, but very seldom feminine name, Algeria, where it is quite a rare epicene name, and the Democratic Republic of the Congo, where it is a rare male name. Likewise, Kî is the last name as well as the forename.