The spelling of the name "Allystair" is not a commonly found variant of the more popular name "Alistair". The pronunciation of this name can be represented phonetically using the International Phonetic Alphabet (IPA) as /əˈlɪstər/. The first syllable "Al" is pronounced as a schwa sound, while the second syllable "ly" is pronounced as short "i" sound, and the final syllable "stair" is pronounced as a mix of "st" and "air". It is important to note that this spelling may cause confusion in its pronunciation.