|Died||In 299 AC, at Winterfell|
|Book(s)|| A Clash of Kings (Appears)|
A Dance with Dragons (Mentioned)
Aggar is an ironborn warrior.
A Clash of Kings
Aggar is one of Theon Greyjoy's crew members. He takes part in the capture of Winterfell and accompanies Theon during the search for Bran Stark and his companions. He, Gelmarr and Gynir go with Theon and "Reek" and are present for the false execution of Bran and Rickon Stark at the mill on the Acorn Water. Gelmarr dies the night the group returns to Winterfell, while Aggar is found with his throat cut the following day. Gynir is also eventually found dead. Although he has no evidence, Theon condemns Farlen for the deaths and personally executes the kennelmaster. Theon later recollects that Reek was responsible for the murders.