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What does Alastair mean?

Alastair Pronunciation of Alastair [alas-tair] as a boys' name (also used as girls' name Alastair) is of Scottish and Greek origin, and the meaning of Alastair is "man's defender". Scottish variant of Alistair, from Alexander. Most of the variants are different phonetic spellings of the name. TV commentator Alistair Cooke; actor Alistair Sim.

Associated with: scottish, greek, defender.


Alastair has 26 variants: Al, Alaisdair, Alaistair, Alaister, Alasdair, Alasteir, Alaster, Alastor, Aleister, Alester, Alistair, Alistar, Alister, Allaistar, Allaster, Allastir, Allistair, Allister, Allistir, Allysdair, Allystair, Allyster, Alysdair, Alysdare, Alystair and Alyster.

3 more different relations via Alexander, Alistair: Alisdair, Alistaire and Alistir.

Creative forms:


Middle name pairings:
Alastair Jethro (A.J.), ..

How popular is Alastair?

Alastair is an uncommonly occurring first name for men. Alastair is also an uncommon surname for all people. (2000 U.S. Census)

Which version is better?

with its variant forms and related boy names. Prominent alternative forms of Alastair (outside Top 2000) are Alexander (#8 in recent rankings), Alistair (#1031), Alister (#1815) and Al. Usage of these relations of Alastair reached its highest 2 decades ago (median #1369) and is almost as widespread today (#1213, down 26.1%), but with the version Al going out of style. Alistair and Alexander are two of the more contemporarily stylish boy names here. (Top 2000 Names, 2015)

Top 2000 baby names ranking of Al, Alexander, Alistair, Alister in U.S.

Top 100 baby names ranking of Alexander, Alistair outside U.S.

Similar Names

Suggested similar names are Abishai, Adair, Agustin, Alain, Alair, Alaire, Alamar, Alaric, Alavaro, Albain, Algar, Allain, Allgar (see Alger), Allston, Allstonn, Alltair, Allvar, Alomar, Alsten, Alstin, Alston, Alta, Altaer, Altair, Altayr, Alter, Alvar, Amasa, Amati, Amishar, Amitai, Anastagio, Anastas, Anastase, Anastasio, Anastasios, Anastasius (see Anastasios), Anastatius (see Anastasios), Anastice, Anastius, Anasto, Anastos, Anestis, Anstas, Aristio, Artair, Austin, Avishai, Avishar, Blair, Casimir, Casmir, Clair, Ellair, Kasimir, Katzir, Nasir, Slavomir, Vladamir, Vladimir, Wladimir and Yasir. These names tend to be more frequently used than Alastair.

See names
in meaning and etymology.