Keefer is a distinctive boys' name in United States, ranking #10114 in 2015 with 7 recorded births. This places Keefer in the bottom 28% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2000 with 15 births ranking #4922. Since 1996, the popularity has decreased by 46.2%. In 2015, approximately 1 in every 273,751 boys born was named Keefer. FALLING Recent data shows the name is currently falling.