Hans Jürgen "Hansi" Kürsch (born 10 August 1966) is a German singer, songwriter, record producer and former bass guitarist, best known as a member of the power metal band Blind Guardian. One of the founders of the band, he has been its lead vocalist since its creation in 1984, and also acted as the band's bass guitarist until 1996.
He is also the former lead vocalist of Demons & Wizards, a side-project with Iced Earth guitarist Jon Schaffer until his departure from the project in 2021. Additionally, he worked prominently as a guest with other artists, including Angra, Edguy, Iced Earth, and Therion; he notably played characters in the Ayreon albums 01011001 and The Source.