Alonso is a distinctive boys' name in United States, ranking #712 in 2014 with 339 recorded births. The name reached its all-time peak in 2010 with 380 births ranking #636. Since 1996, the popularity has increased by 75.6%. In 2014, approximately 1 in every 5,665 boys born was named Alonso. RISING Recent data shows the name is currently rising.