Kiefer is a distinctive boys' name in United States, ranking #1693 in 2006 with 84 recorded births. The name reached its all-time peak in 2006 with 84 births ranking #1693. Since 1996, the popularity has increased by 23.5%. In 2006, approximately 1 in every 24,466 boys born was named Kiefer. STABLE Recent data shows the name is currently stable.