What does the name Alistair mean? The meaning of the name Alistair is Defender Of The People. The origin of the name Alistair is Scottish. This is the culture in which the name originated, or in the case of a word, the language.
Alternate spellings: Alister
People who like the name Alistair also like: Atticus
, Theodore Amelia
Name Notes: Scottish form of Alexander, originally spelled Alasdair.