Kiefer is a distinctive boys' name in United States, ranking #1922 in 2003 with 61 recorded births. The name reached its all-time peak in 2006 with 84 births ranking #1693. Since 1996, the popularity has decreased by 10.3%. In 2003, approximately 1 in every 32,381 boys born was named Kiefer. STABLE Recent data shows the name is currently stable.