Alistair is a distinctive boys' name in United States, ranking #897 in 2025 with 265 recorded births. The name reached its all-time peak in 2025 with 265 births ranking #897. Since 1996, the popularity has increased by 1,052.2%. In 2025, approximately 1 in every 6,446 boys born was named Alistair. STABLE Recent data shows the name is currently stable.