Demosistō () was a pro-democracy political organisation established on 10 April 2016 as a political party. It was led by Joshua Wong and Agnes Chow – former leaders of Scholarism, along with Nathan Law, former secretary-general of the Hong Kong Federation of Students (HKFS). Scholarism and the HKFS were the two student activist groups which played an instrumental role in the 79-day occupy protests known as the Umbrella Revolution in 2014.