Which superhero gave The Avengers their name?

The name "The Avengers" was suggested by the Wasp (Janet van Dyne) in "Avengers Volume 1, #1" which was published in 1963. In her dialogue, the Wasp suggested a "colorful and dramatic" name for the newly formed crime fighting group of superheroes, which, at the time, included Ant-Man, Iron Man, the Hulk and Thor.

Since its fictional formation and real-world first edition publication in the 1960s, the Avengers franchise has become a major and enduring hit for Marvel Comics. A film version of "The Avengers" that was released in 2012 became one of the highest grossing films of all time, and it earned Marvel its biggest film hit as of 2012.