Char Aznable (シャア・アズナブル, Shaa Azunaburu), born Casval Rem Deikun (キャスバル・レム・ダイクン, Kyasubaru Remu Daikun) and also gone by the name Édouard Mass (エドワウ・マス, Edowau Masu), is a fictional character from the Gundam franchise. He is originally one of the main antagonists in Mobile Suit Gundam working for the Principality of Zeon, named after his late father Zeon Zum Deikun, with the honorary title of "The Red Comet" (赤い彗星, Akai Suisei) during Gundam's One Year War. Despite having opposed Earth Federation soldier Amuro Ray several times, in the sequel Mobile Suit Zeta Gundam he becomes Quattro Bajeena (クワトロ・バジーナ, Kuwatoro Bajīna), an Anti-Earth Union Group (AEUG) pilot fighting alongside the series' main characters against the elitist Titans. In his final appearance in Char's Counterattack, he assumes leadership of the Neo Zeon movement, and becomes the titular antagonist of the film.

Char became one of Gundam's most iconic characters, often overshadowing Amuro's popularity. He also appeared as the most popular male anime character in Animage's Anime Grand Prix poll as well as in several other polls highlighting his popularity in the Gundam franchise. His role in the original has often been praised alongside his rivalry with Amuro.