Giannis Tsironis is a Greek politician and activist. He is a member of the Ecologist Greens and their current spokesperson. From January to August 2015, he served as the Alternate Minister for the Environment and Energy in the First Cabinet of Alexis Tsipras, as part of an electoral alliance between the Ecologist Greens and Syriza. He resumed this role from September 2015 to November 2016, as part of the Second Cabinet of Alexis Tsipras, in which he also served as the Alternative Minister for Agricultural Development and Food from November 2016 to August 2018.