Mortality is the state of being mortal, or susceptible to death; the opposite of immortality.

It may also refer to:

  • Mortality rate, a measure of the number of deaths in a given population
  • Case mortality rate, a measure of the number of deaths among a set of diagnosed hospital illness or injury cases
  • Mortality displacement, denotes a (forward) temporal shift in the rate of mortality
  • Mortality drag, a term to describe a negative impact that is experienced when an annuity purchase is delayed
  • Mortality (band), a thrash metal band from Sydney, Australia
  • Mortality (computability theory), a property of a Turing machine if it halts when run on any starting configuration
  • Mortality, differential attrition between groups in a scientific study
  • Mortality (book), a 2012 collection of essays by Anglo-American writer Christopher Hitchens

Mortal may refer to:

  • Human, as distinct from a supernatural being
  • Mortal (band), a Christian industrial band
  • Mortal Kombat, a fighting game series