Kayston is a distinctive boys' name in United States, ranking #11464 in 2016 with 6 recorded births. This places Kayston in the bottom 19% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2017 with 14 births ranking #6196. In 2016, approximately 1 in every 316,202 boys born was named Kayston. STABLE Recent data shows the name is currently stable.