Phan Đình Phùng (1847 – January 21, 1896) was a Vietnamese revolutionary who led rebel armies against French colonial forces in Vietnam. He was the most prominent of the Confucian court scholars involved in anti-French military campaigns in the 19th century and was cited after his death by 20th-century nationalists as a national hero. He was renowned for his uncompromising will and principles—on one occasion, he refused to surrender even after the French had desecrated his ancestral tombs and had arrested and threatened to kill his family.

Born into a family of mandarins from Hà Tĩnh Province, Phan continued his ancestors' traditions by placing first in the metropolitan imperial examinations in 1877. Phan quickly rose through the ranks under Emperor Tự Đức of the Nguyễn dynasty, gaining a reputation for his integrity and uncompromising stance against corruption. Phan was appointed as the Imperial Censor, a position that allowed him to criticise his fellow mandarins and even the emperor. As the head of the censorate, Phan's investigations led to the removal of many incompetent or corrupt mandarins.

Upon Tự Đức's death, Phan almost lost his life during a power struggle in the imperial court. The regent Tôn Thất Thuyết disregarded Tự Đức's will of succession, and three emperors were deposed and killed in just over a year. Phan protested against Thuyet's activities, was stripped of his honours and briefly jailed, before being exiled to his home province. At the time, France had just conquered Vietnam and made it a part of French Indochina. Along with Thuyết, Phan organised rebel armies as part of the Cần Vương movement, which sought to expel the French and install the boy Emperor Hàm Nghi at the head of an independent Vietnam. This campaign continued for three years until 1888, when the French captured Ham Nghi and exiled him to Algeria.