Charlotte Linlin

Big Mom (ビッグ・マム Biggu Mamu) is the last Yonkou to be named.

Appearance
Along with Kaidou, Big Mom has yet to make an actual appearance, but the pirate's silhouette is visible in Monkey D. Garp's explanation of the Yonkou.

Abilities and Powers
As one of the Yonkou, Big Mom is one of the three (formerly four) most powerful pirates in the world.

Trivia

 * It is currently unknown if "Big Mom" is an epithet or the real name.