Alasdair is a distinctive boys' name in England & Wales, ranking #1133 in 2009 with 22 recorded births. The name reached its all-time peak in 1996 with 71 births ranking #335. Since 1996, the popularity has decreased by 69.0%. In 2009, approximately 1 in every 15,370 boys born was named Alasdair. STABLE Recent data shows the name is currently stable.