Alistair is a distinctive boys' name in United States, ranking #961 in 2020 with 226 recorded births. The name reached its all-time peak in 2025 with 265 births ranking #897. Since 1996, the popularity has increased by 882.6%. In 2020, approximately 1 in every 7,633 boys born was named Alistair. STABLE Recent data shows the name is currently stable.