Efren is a distinctive boys' name in United States, ranking #1351 in 2010 with 126 recorded births. The name reached its all-time peak in 2007 with 201 births ranking #977. Since 1996, the popularity has decreased by 31.5%. In 2010, approximately 1 in every 15,225 boys born was named Efren. FALLING Recent data shows the name is currently falling.