Irwin is a distinctive boys' name in United States, ranking #6600 in 2025 with 13 recorded births. The name reached its all-time peak in 2007 with 47 births ranking #2620. Since 1996, the popularity has decreased by 68.3%. In 2025, approximately 1 in every 131,390 boys born was named Irwin. RISING Recent data shows the name is currently rising.