Efrain is a distinctive boys' name in United States, ranking #1060 in 2015 with 188 recorded births. The name reached its all-time peak in 1999 with 392 births ranking #529. Since 1996, the popularity has decreased by 50.5%. In 2015, approximately 1 in every 10,193 boys born was named Efrain. FALLING Recent data shows the name is currently falling.