Culkin's current middle name is Carson but as he announced on Twitter that will be changing in 2019.
Macaulay Culkin decided to legally change his middle name, and in this age of the internet, he (of course) decided to let fans choose his new name.
Four of the top five fan choices were "Publicity Stunt," "TheMcRibIsBack," "Kieran" — his younger brother’s name — and "Shark Week."
But the winner was his full first and last name — Macaulay Culkin – which earned nearly 61,000 votes.
On Christmas Day, Culkin announced on Twitter that he'll legally change his name in 2019 to Macaulay Macaulay Culkin Culkin.