Alaster is a distinctive boys' name in United States, ranking #6464 in 2025 with 13 recorded births. This places Alaster in the top 46% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2024 with 16 births ranking #5656. In 2025, approximately 1 in every 131,390 boys born was named Alaster. RISING Recent data shows the name is currently rising.