| Quantity | Greek Letter |
| Shear stress | |
| Efficiency | |
| Angular velocity | |
| Summation | |
| Coefficient of friction | |
| Torque | |
| Coefficient of thermal expansion | |
| Poisson's ratio | |
| Torsional constant | |
| Damping ratio | |
| Plane angle | |
| Eigenvalue | |
| Density | |
| Electrical resistance | |
| Plane stress | |
| | Quantity | Greek Letter |
| Archimedes' constant | |
| Electronegativity | |
| Angular acceleration | |
| Radius | |
| Wavelength | |
| Viscosity | |
| Curvature | |
| Magnetic flux | |
| Symmetric difference | |
| Deflection (mechanics) | |
| Strain (mechanics) | |
| Emissivity | |
| Magnetic permeability | |
| Specific weight | |
| The wave function | |
|