| Ohyoshi Takayuki | Faculty of Pure and Applied Sciences | Assistant Professor | - 天然物化学, 有機合成化学 |
| Oigawa Haruhiro | Faculty of Pure and Applied Sciences | Assistant Professor | Thin film/Surface and interfacial physical properties, Applied materials, Electron device/Electronic equipment - Surface Science, Epitaxial Growth, Electronic Device |
| Oikawa Issei | Faculty of Pure and Applied Sciences | Associate Professor | Foundations of mathematics/Applied mathematics - Numerical Analysis, Finite Element Method |
| Oishi Motoi | Faculty of Pure and Applied Sciences | Associate Professor | |
| Okada Akira | Faculty of Pure and Applied Sciences | Assistant Professor | - Biophysics |
| Okada Susumu | Faculty of Pure and Applied Sciences | Professor | Mathematical physics/Fundamental condensed matter physics - |
| Okamoto Dai | Faculty of Pure and Applied Sciences | Assistant Professor | Electron device/Electronic equipment - Semiconductor, Device Physics, Silicon Carbide, Insulater Technology, Interface Physics, Power Device |
| Okumura Hironori | Faculty of Pure and Applied Sciences | Assistant Professor | Electronic materials/Electric materials, Crystal engineering, Thin film/Surface and interfacial physical properties - |
| Ono Hajime | Faculty of Pure and Applied Sciences | Professor | Geometry - 標準ケーラー計量, 標準佐々木計量, ハミルトン体積最小性 |
| Onoda Masashige | Faculty of Pure and Applied Sciences | Associate Professor | Condensed matter physics II - Magnetism and Materials Science: Multilateral and Comprehensive Study for Transition-Metal Compound Systems, Functional Materials System (Novel Ion Battery and Thermoelectric Device), Correlated Electron System (Novel Superconductivity), Quantum Spin-Fluctuation System (Geometrical Spin Frustration), Nuclear Magnetic Resonance; Electron Spin Resonance; X-Ray Four-Circle Diffraction; Magnetic, Transport and Thermal Measurements |
