Keith is a moderately popular boys' name in England & Wales, ranking #499 in 1999 with 40 recorded births. The name reached its all-time peak in 1996 with 57 births ranking #379. Since 1996, the popularity has decreased by 29.8%. In 1999, approximately 1 in every 7,581 boys born was named Keith. FALLING Recent data shows the name is currently falling.