The name Kay is found both as a surname and as a given name. In English-speaking countries, it is usually a feminine name, often a short form of Katherine or one of its variants; but it is also used as a first name in its own right, and also as a masculine name (for example in India, the Netherlands, and Sweden). The alternative spelling of Kaye is encountered as a surname, but also occasionally as a given name: for instance, actress Kaye Ballard. Name. Female. Kay Armen (1915–2011), stage name of Armenuhi Manoogian, American Armenian singer.
https://en.wikipedia.org/wiki/Kay