Keston is a distinctive boys' name in United States, ranking #4765 in 1996 with 13 recorded births. This places Keston in the top 45% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2010 with 43 births ranking #2809. In 1996, approximately 1 in every 145,710 boys born was named Keston. FALLING Recent data shows the name is currently falling.