Alistair is a male given name and is of Scottish origin. It means defender of mankind. Pronounced as AL-әs-tәr, the name is currently in the top 50 of NameChef Most Popular Baby Names and in the top 1000 of U.S birth chart of the year 2019.
Alistair is a boy's name.
(Or listen to the pronunciation from https://www.pronouncenames.com/search?name=alistair)