Kacper is a distinctive boys' name in United States, ranking #2167 in 2012 with 62 recorded births. The name reached its all-time peak in 2007 with 88 births ranking #1714. Since 1996, the popularity has increased by 588.9%. In 2012, approximately 1 in every 30,591 boys born was named Kacper. STABLE Recent data shows the name is currently stable.