Alastair is a moderately popular boys' name in England & Wales, ranking #195 in 1996 with 166 recorded births. This places Alastair in the top 5% 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 166 births ranking #195. In 1996, approximately 1 in every 1,919 boys born was named Alastair. RISING Recent data shows the name is currently rising.