The name "Agatha" is the Latinized form of the Greek name Αγαθη (Agathe), derived from Greek αγαθος (agathos) meaning "good". Saint Agatha was a 3rd-century martyr from Sicily who was tortured and killed after spurning the advances of a Roman official. The saint was widely revered in the Middle Ages, and her name has been used throughout Christian Europe (in various spellings). The mystery writer Agatha Christie (1890–1976) was a famous modern bearer of this name.
- Harry Potter and the Prisoner of Azkaban (video game) (PS2 version only)
- Harry Potter and the Half-Blood Prince (video game) (NDS version only)