Pilar is a distinctive girls' name in United States, ranking #2291 in 2010 with 84 recorded births. The name reached its all-time peak in 2005 with 137 births ranking #1518. Since 1996, the popularity has increased by 21.7%. In 2010, approximately 1 in every 21,159 girls born was named Pilar. STABLE Recent data shows the name is currently stable.