Alasdair is a distinctive boys' name in England & Wales, ranking #1533 in 2023 with 16 recorded births. The name reached its all-time peak in 1996 with 71 births ranking #335. Since 1996, the popularity has decreased by 77.5%. In 2023, approximately 1 in every 17,291 boys born was named Alasdair. STABLE Recent data shows the name is currently stable.