Alistair is a distinctive boys' name in United States, ranking #901 in 2021 with 255 recorded births. The name reached its all-time peak in 2025 with 265 births ranking #897. Since 1996, the popularity has increased by 1,008.7%. In 2021, approximately 1 in every 6,856 boys born was named Alistair. STABLE Recent data shows the name is currently stable.