Giles is a distinctive boys' name in England & Wales, ranking #544 in 1998 with 34 recorded births. The name reached its all-time peak in 1997 with 60 births ranking #378. Since 1996, the popularity has decreased by 27.7%. In 1998, approximately 1 in every 9,131 boys born was named Giles. FALLING Recent data shows the name is currently falling.