Keith is a moderately popular boys' name in United States, ranking #237 in 2001 with 1,432 recorded births. This places Keith in the top 2% of ranked US boys' names for the year. Its actual usage is classified as Moderately Popular. The name reached its all-time peak in 1996 with 2,183 births ranking #159. Since 1996, the popularity has decreased by 34.4%. In 2001, approximately 1 in every 1,357 boys born was named Keith. FALLING Recent data shows the name is currently falling.