- English physicist and mathematician.
- the basic unit of temperature in the International System of Units (SI), formally defined to be approximately 1/273 of the triple point of water. Abbreviation: K
- noting or pertaining to an absolute scale of temperature (Kelvin scale ) in which the degree intervals are equal to those of the Celsius scale and in which absolute zero is 0 degrees Kelvin and the triple point of water has the value of approximately 273 degrees Kelvin.
- a male given name.
- the basic SI unit of thermodynamic temperature; the fraction 1/273.16 of the thermodynamic temperature of the triple point of water
- William Thomson, 1st Baron Kelvin. 1824–1907, British physicist, noted for his work in thermodynamics, inventing the Kelvin scale, and in electricity, pioneering undersea telegraphy
