Alasdair is a distinctive boys' name in England & Wales, ranking #761 in 2003 with 27 recorded births. The name reached its all-time peak in 1996 with 71 births ranking #335. Since 1996, the popularity has decreased by 62.0%. In 2003, approximately 1 in every 11,094 boys born was named Alasdair. STABLE Recent data shows the name is currently stable.