Kiefer is a distinctive boys' name in United States, ranking #1961 in 2002 with 57 recorded births. The name reached its all-time peak in 2006 with 84 births ranking #1693. Since 1996, the popularity has decreased by 16.2%. In 2002, approximately 1 in every 34,061 boys born was named Kiefer. STABLE Recent data shows the name is currently stable.