Lambert is a distinctive boys' name in United States, ranking #6402 in 1997 with 9 recorded births. This places Lambert in the bottom 41% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2017 with 18 births ranking #5214. In 1997, approximately 1 in every 209,454 boys born was named Lambert. RISING Recent data shows the name is currently rising.