Conductivity may refer to:
- Electrical conductivity, a measure of a material's ability to conduct an electric current
- Conductivity (electrolytic), the electrical conductivity of an electrolyte in solution
- Conductivity (non-aqueous), the electrical conductivity of low- and non-polar liquids
- Ionic conductivity (solid state), electrical conductivity due to ions moving position in a crystal lattice
- Hydraulic conductivity, a property of a porous material's ability to transmit water
- Thermal conductivity, an intensive property of a material that indicates its ability to conduct heat