Alastair is a moderately popular boys' name in England & Wales, ranking #440 in 2006 with 74 recorded births. The name reached its all-time peak in 1996 with 166 births ranking #195. Since 1996, the popularity has decreased by 55.4%. In 2006, approximately 1 in every 4,329 boys born was named Alastair. RISING Recent data shows the name is currently rising.