Glen is a moderately popular boys' name in England & Wales, ranking #304 in 1998 with 85 recorded births. The name reached its all-time peak in 1996 with 96 births ranking #281. Since 1996, the popularity has decreased by 11.5%. In 1998, approximately 1 in every 3,653 boys born was named Glen. FALLING Recent data shows the name is currently falling.