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Alastair meaning and name origin
Alastair \a-las-tair, al(a)-stair\ as a girl's name (also used as boy's name Alastair), is of Greek origin, and the meaning of Alastair is "man's defender". Scottish variant of Alexander.
Alastair has 3 variant forms: Alasdair, Alastrina and Alastriona.
Baby names that sound like Alastair are Alesta and Alista.
Popularity of Alastair
Alastair is not a popular first name for women and an equally uncommon surname or last name for all people. (1990 U.S. Census)
Displayed below is the baby names popularity of the name Alastair for girls. (2010 statistics) Compare Alastair with its variant forms and related girl baby names.