Alonso is a distinctive boys' name in United States, ranking #772 in 2018 with 300 recorded births. The name reached its all-time peak in 2010 with 380 births ranking #636. Since 1996, the popularity has increased by 55.4%. In 2018, approximately 1 in every 6,052 boys born was named Alonso. RISING Recent data shows the name is currently rising.