Inequality may refer to:

• Inequality (mathematics), a relation between two quantities when they are different.
• Economic inequality, difference in economic well-being between population groups
  • Income inequality, an unequal distribution of income
  • Wealth inequality, an unequal distribution of wealth
  • Spatial inequality, the unequal distribution of income and resources across geographical regions
  • International inequality, economic differences between countries
• Social inequality, unequal opportunities and rewards for different social positions or statuses within a group
  • Gender inequality, unequal treatment or perceptions due to gender
  • Racial inequality, social distinctions between racial and ethnic groups within a society
• Health inequality, differences in the quality of health and healthcare across populations
• Educational inequality, the unequal distribution of academic resources
• Environmental inequality, unequal environmental harms between different neighborhoods or cities
  • Urban forest inequity, an unequal distribution of trees
• Attention inequality, unequal distribution of attention across users, groups of people, issues in etc. in attention economy
• Participation inequality, the phenomenon in which a small percentage of people contributes the majority of information to the total outcome

• Equality (disambiguation)
• Equal (disambiguation)
• Inequation (≠)
• List of countries by wealth inequality
• List of countries by income inequality
• List of inequalities