Jeffery is a moderately popular boys' name in United States, ranking #293 in 1998 with 965 recorded births. The name reached its all-time peak in 1996 with 1,119 births ranking #255. Since 1996, the popularity has decreased by 13.8%. In 1998, approximately 1 in every 1,981 boys born was named Jeffery. FALLING Recent data shows the name is currently falling.