Kerwin is a distinctive boys' name in United States, ranking #13025 in 2025 with 5 recorded births. The name reached its all-time peak in 1996 with 27 births ranking #2795. Since 1996, the popularity has decreased by 81.5%. In 2025, approximately 1 in every 341,615 boys born was named Kerwin. FALLING Recent data shows the name is currently falling.