Osi and the Jupiter is an American neo-folk band from Kent, Ohio, formed in 2015. The duo comprises multi-instrumentalist Sean Kratz and cellist Kakophonix. Their music blends elements of pagan folk, ambient, and dark folk, drawing inspiration from both Nordic traditions and American folklore. They have released several albums, including Halls of the Wolf (2016), Nordlige Rúnaskog (2019), Appalachia (2020), Stave (2021), and Cedar and Sage: Riders of the Gallows Vol. 1 (2023), all under the German label Eisenwald.