Alasdair is a distinctive boys' name in England & Wales, ranking #546 in 2002 with 38 recorded births. The name reached its all-time peak in 1996 with 71 births ranking #335. Since 1996, the popularity has decreased by 46.5%. In 2002, approximately 1 in every 7,587 boys born was named Alasdair. STABLE Recent data shows the name is currently stable.