Alaster
Literal root meaning: “to defend + man”
About the name Alaster
Alaster is a boy name with Ancient Greek roots, literally “to defend + man”. It is related to Alistair, which is where the meaning comes from.
It has a unique feel. In 2025, Alaster ranked #6464 for boys in the US, with 13 babies given the name. Its peak year since 1940 was 2024. Since 2000, 100% of US babies named Alaster were boys.
Etymology
A variant of Alistair, which comes from Ancient Greek, meaning “to defend” + “man”.
Name meaning adapted from Wiktionary (“Alaster”, “Alistair”) by Wiktionary contributors, CC BY-SA 4.0.
- US rank 2025
- #6464
- In 2015
- Not ranked
- Babies in 2025
- 13
Popularity of Alaster, 1940–2025
Latest SSA data: 2025.
Popularity data: U.S. Social Security Administration national baby names (public domain; names given to at least 5 babies of one sex per year).
Names similar to Alaster
Name meanings marked or linked “Wiktionary” are adapted from Wiktionary by Wiktionary contributors, CC BY-SA 4.0; each name page links its source entry.