Chapin is a distinctive girls' name in United States, ranking #16256 in 2003 with 5 recorded births. The name reached its all-time peak in 1996 with 8 births ranking #9739. Since 1996, the popularity has decreased by 37.5%. In 2003, approximately 1 in every 365,410 girls born was named Chapin. FALLING Recent data shows the name is currently falling.