Jennefer is a distinctive girls' name in United States, ranking #5570 in 2000 with 20 recorded births. This places Jennefer in the top 32% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1997 with 25 births ranking #4278. Since 1996, the popularity has decreased by 16.7%. In 2000, approximately 1 in every 90,799 girls born was named Jennefer. FALLING Recent data shows the name is currently falling.