Alonso is a distinctive boys' name in United States, ranking #636 in 2010 with 380 recorded births. This places Alonso in the top 4% of ranked US boys' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2010 with 380 births ranking #636. Since 1996, the popularity has increased by 96.9%. In 2010, approximately 1 in every 5,048 boys born was named Alonso. RISING Recent data shows the name is currently rising.