Nguyễn Thành (chữ Hán: 阮誠; 1863–1911), courtesy name Nam Thạnh, later changed to Tiểu La (小羅) was a Vietnamese scholar-gentry anti-colonial revolutionary activist who advocated independence from French colonial rule.
This had come when the regent Tôn Thất Thuyết had smuggled the boy Emperor Hàm Nghi out of the city and attempted to start an uprising to expel the French colonial authorities as part of the Cần Vương movement.
He was eventually allowed to return to his home village by Nguyễn Thân [vi], the infamous collaborator official who had disposed of the remains of Phan Đình Phùng, the leading anti-colonial revolutionary of the time.
[5] Thus, Nguyễn became the main strategist of the Duy Tân hội, and he organised Phan's trip through the Mekong Delta region to rally further support among the remnants of the followers of the anti-colonial guerrilla Trương Định, who had resisted the initial colonisation some four decades earlier.
[8] In 1908, as part of a general crackdown on independence activists, Nguyễn was arrested by the French colonial authorities and sent to the prison of island of Côn Lôn, where he died.