The 33rd International Workshop on Deep Inelastic Scattering and Related Subjects (DIS2026) will be held in Bologna, Italy, from May 4 to May 8, 2026. DIS2026 is the 33rd in an annual series of International Workshops covering a broad mixture of material related to Quantum Chromodynamics and Deep Inelastic Scattering as well as a general survey of the hottest topics in high energy physics. A significant part of the program is devoted to the most recent theoretical advances and results from large experiments at BNL, CERN, DESY, FNAL, JLab and KEK. By bringing together theoretical and experimental physicists to discuss the latest results in the field it has played and still plays a significant role in shaping the research in this area. This edition of the Workshop is co-organized by the INFN Divisions of Bologna and Ferrara, the Department of Physics and Astronomy of the University of Bologna, and the Department of Physics and Earth Sciences of the University of Ferrara.