Lambert is a distinctive boys' name in United States, ranking #13558 in 2007 with 5 recorded births. The name reached its all-time peak in 2017 with 18 births ranking #5214. Since 1996, the popularity has decreased by 50.0%. In 2007, approximately 1 in every 415,047 boys born was named Lambert. RISING Recent data shows the name is currently rising.