Lambert is a distinctive boys' name in United States, ranking #7033 in 2025 with 12 recorded births. The name reached its all-time peak in 2017 with 18 births ranking #5214. Since 1996, the popularity has increased by 20.0%. In 2025, approximately 1 in every 142,340 boys born was named Lambert. RISING Recent data shows the name is currently rising.