Alastair is a distinctive boys' name in England & Wales, ranking #1701 in 2023 with 14 recorded births. The name reached its all-time peak in 1996 with 166 births ranking #195. Since 1996, the popularity has decreased by 91.6%. In 2023, approximately 1 in every 19,761 boys born was named Alastair. RISING Recent data shows the name is currently rising.