Jennefer is a distinctive girls' name in United States, ranking #9239 in 2007 with 13 recorded births. The name reached its all-time peak in 1997 with 25 births ranking #4278. Since 1996, the popularity has decreased by 45.8%. In 2007, approximately 1 in every 147,881 girls born was named Jennefer. FALLING Recent data shows the name is currently falling.