Gunnar is a distinctive boys' name in United States, ranking #501 in 2011 with 520 recorded births. The name reached its all-time peak in 2015 with 825 births ranking #388. Since 1996, the popularity has increased by 54.3%. In 2011, approximately 1 in every 3,652 boys born was named Gunnar. STABLE Recent data shows the name is currently stable.