Dempsey is a distinctive boys' name in United States, ranking #2097 in 2017 with 66 recorded births. This places Dempsey in the top 15% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2014 with 94 births ranking #1644. Since 1996, the popularity has increased by 200.0%. In 2017, approximately 1 in every 28,035 boys born was named Dempsey. FALLING Recent data shows the name is currently falling.