The Volumetric Video Challenge Workshop 2026 aims to accelerate the transition of volumetric video technology from laboratory prototypes to practical, scalable, and deployable systems, supporting advances in immersive and interactive experiences. Following the successful inaugural challenge held at SIGGRAPH Asia 2025, the workshop will feature the second edition of the Volumetric Video Challenge, together with invited keynote talks highlighting the latest developments in volumetric video. This year’s challenge focuses on two key problems: volumetric video compression and sparse-view volumetric video reconstruction. The challenge evaluates submissions on an expanded high-quality multi-view benchmark built upon the SIGGRAPH Asia 2025 dataset and augmented with additional captures from the SelfCap dataset. Detailed information about awards, prizes, and submission guidelines is available on the workshop website.