Kiefer is a distinctive boys' name in United States, ranking #2363 in 2008 with 55 recorded births. The name reached its all-time peak in 2006 with 84 births ranking #1693. Since 1996, the popularity has decreased by 19.1%. In 2008, approximately 1 in every 37,090 boys born was named Kiefer. STABLE Recent data shows the name is currently stable.