Lamark is a distinctive boys' name in United States, ranking #13557 in 2007 with 5 recorded births. The name reached its all-time peak in 2006 with 9 births ranking #8455. Since 1996, the popularity has decreased by 16.7%. In 2007, approximately 1 in every 415,047 boys born was named Lamark. STABLE Recent data shows the name is currently stable.