Lyman is a distinctive boys' name in United States, ranking #9447 in 1999 with 6 recorded births. The name reached its all-time peak in 2010 with 17 births ranking #5390. Since 1996, the popularity has decreased by 62.5%. In 1999, approximately 1 in every 320,015 boys born was named Lyman. FALLING Recent data shows the name is currently falling.