A new reduction process for producing titanium (Ti) with an ultra-low oxygen concentration directly from TiO₂, employing yttrium (Y) as the reductant, was developed in this study. Several methods for the direct reduction of TiO₂ have been proposed to lower the cost of production of Ti. However, none of them have yet been applied industrially. In addition, Y has never been used as a reductant for reducing TiO₂ although its reducing ability is the highest among the reductants capable of reducing TiO₂ to Ti with low oxygen concentration. In this study, the reduction reactions of TiO₂ using Y/Y₂O₃ equilibrium and Y/YOCl/YCl₃ equilibrium, employing various molten salts as solvents, were investigated. TiO₂ pellets and metallic Ti pieces were placed in several types of solvents along with sufficient Y and heated at 1300 K for 86 ks. When YCl₃ or CaCl₂ was used as the solvent, the TiO₂ pellets were reduced to metallic Ti. The oxygen concentrations in the Ti pieces after heating in YCl₃ and CaCl₂ were 90 ± 40 mass ppm O and 350 ± 60 mass ppm O, respectively. However, when NaCl or KCl was used as the solvent, a small amount of metallic Ti and a large amount of complex oxides were obtained. It is considered that the reduction reaction did not proceed sufficiently owing to the low solubility of the oxide ions in molten salts. It was experimentally demonstrated that Ti with an ultra-low oxygen concentration (100 mass ppm O or less) can be directly produced from TiO₂ by using Y as the reductant in an appropriate solvent. This method is expected to lead to the development of a new industrial process for the production of Ti with an ultra-low oxygen concentration directly from its ore.