Alastair Prev Random Next GenderMaleOriginEnglishDefender of manGaelicDefends mankind; variant of AlexanderScottishDefends mankind; an Anglicized form of Alasdair, a Gaelic variant of AlexanderSyllables3ThemesExoticAlternate Spellings of AlastairAllister, Alasdair, Alis, AlaiPronunciationa-las-tair, al(a)-stairFamous PeopleBroadcaster Alistair CookeCelebrity BabiesSon of Andrew Lloyd Webber Prev Random Next Share this:TweetRedditShare on Tumblr