Kerwin is a distinctive boys' name in United States, ranking #8519 in 2018 with 9 recorded births. This places Kerwin in the bottom 40% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1996 with 27 births ranking #2795. Since 1996, the popularity has decreased by 66.7%. In 2018, approximately 1 in every 201,719 boys born was named Kerwin. FALLING Recent data shows the name is currently falling.