The 6th Quantum Bio-Inorganic Chemistry Conference will be held from 29.08 to 01.09.2023 in Warsaw, Poland. The conference is organized jointly by the Institute of Physical Chemistry, Polish Academy of Sciences (IChF) in Warsaw, and the Laboratory of Chemistry and Biology of Metals (LCBM), French Alternative Energies and Atomic Energy Commission (CEA). The 2023 conference follows the previous QBIC meetings in Warwick (1999), Lund (2003), Český Krumlov (2011), Bath (2018), and Marseille (2019). QBIC-VI is the third meeting organized since the founding of the Quantum Bioinorganic Chemistry Society. The scientific focus of the conference is on computational inorganic and bioinorganic chemistry, covering theoretical methods, novel applications, and combined computational/experimental approaches.