Lamar is a distinctive boys' name in United States, ranking #666 in 1999 with 256 recorded births. The name reached its all-time peak in 2006 with 340 births ranking #671. Since 1996, the popularity has decreased by 13.5%. In 1999, approximately 1 in every 7,500 boys born was named Lamar. FALLING Recent data shows the name is currently falling.