Alasdair is a moderately popular boys' name in England & Wales, ranking #344 in 1997 with 69 recorded births. This places Alasdair in the top 9% of ranked UK boys' names for the year. Its actual usage is classified as Moderately Popular. The name reached its all-time peak in 1996 with 71 births ranking #335. In 1997, approximately 1 in every 4,557 boys born was named Alasdair. STABLE Recent data shows the name is currently stable.