Alistair is a masculine given name. It is an Anglicised form of the Scottish Gaelic Alasdair. The latter is most likely a Scottish Gaelic corruption of the Norman French Alexandre or Latin Alexandrus, which was incorporated into English as Alexander. Ultimately the name derives from the Greek Alexandros. Another, not nearly so common, Anglicisation of Alasdair is Allaster.
Al Baxter, Australian rugby union player
Al Stewart, Scottish-Born Singer-Songwriter
Alastair, 2nd Duke of Connaught and Strathearn (1914–1943), a great-grandson of Queen Victoria
Alastair Bray, Australian footballer
Alastair Campbell, Tony Blair's former director of communications
Alastair Clarkson, head coach of Hawthorn Football Club
Alastair Cook, English cricketer
Alastair Fothergill, British film producer, best known for BBC nature documentaries
Alastair Gillespie, former Canadian politician who held several cabinet positions in the 1970s
Alastair Mackenzie, Scottish actor most famous for playing Archie MacDonald in Monarch of the Glen
Alastair Reynolds, Welsh science fiction author
Alastair Robinson, Anglo-American field botanist
Alastair Sim (1900–1976), comedy actor
Alastair Stewart, ITV News presenter
Alistair Abell, Canadian voice actor
Alistair Appleton, television presenter
Alistair Begg, American pastor, author, and speaker
Alistair Brownlee, British triathlete and Olympic gold medalist
Alistair Campbell, Zimbabwean cricketer
Alistair Cooke (1908–2004), journalist and broadcaster
Alistair Darling, British politician
Alistair Hargreaves, South African rugby player
Alistair MacLean (1922–1987), Scottish novelist
Alistair McGowan, English impressionist and comedian
Alistair McGregor, Scottish field hockey goalkeeper
Alistair Overeem, MMA fighter
Alistair Sinclair, computer scientist
Alistair Taylor (1935–2004), personal assistant to the Beatles' manager, Brian Epstein
Ally MacLeod (1931–2004) Scottish footballer and national team manager
Ally McCoist, Scottish footballer
Alister MacKenzie (1870–1934), British golf course designer
Aleister Crowley (1875–1947), British occultist
Alastair, pseudonym of Baron Hans Henning Voigt, a German artist
Alastair, a demon on the television series Supernatural
Alistair, a main character from the video game Dragon Age: Origins
Alistair Leslie Graham, better known as Ali G, one of three fictional characters created and acted by Sacha Baron Cohen
Brigadier Sir Alistair Gordon Lethbridge-Stewart, Brigadier of UNIT on British science fiction show Doctor Who
Alastor "Mad-Eye" Moody, a character in the Harry Potter series by J. K. Rowling
Alistair Smythe, a Spider-Man villain
Alistair Crane, a villainous patriarch and businessman on TV's Passions
Alistair Oh, the Uncle from the 39 Clues series
Alistair Wikipedia (Text) CC BY-SA