The Autonomous Workers' Union (Ukrainian: Автономна спілка трудящих, АСТ) was a revolutionary syndicalist organization that was founded in 2011 in Kyiv. At the time of its founding, it included people who had participated in other anarchist, leftist, and trade union initiatives, including the Direct Action student union and the . Later, bearers of illiberal Marxist views left the organization, which became consisted exclusively of anarchists and libertarian Marxists. As of 2018, the activity of АСТ was terminated.