Amanda Blake Waller, also known as "the Wall", is a fictional character featured in some American comic books published by DC Comics. The character first appeared in Legends #1 in 1986 and was created by John Ostrander, Len Wein, and John Byrne. Amanda Waller serves intermittently as both an antagonist and an ally to the superheroes of the DC Universe. She is occasionally described as a supervillain.

John Ostrander is an American writer of comic books, including Suicide Squad, Grimjack and Star Wars: Legacy.