Sani Abacha janar da ɗan siyasan Nijeriya ne. An haife shi a shekara ta 1943 a Kano, Arewacin Najeriya (a yau jihar Kano); ya mutu a shekara ta 1998. Sani Abacha shugaban kasar Nijeriya ne daga Nuwamba 1993 zuwa Yuni 1998 (bayan Ernest Shonekan - kafin Abdulsalami Abubakar).