Depression may refer to:

• Clinical depression, a medical condition identified by clusters of symptoms such as markedly-decreased mood, motivation, interest, energy levels, etc.
• Depression (mood), an everyday term for a sad or low mood or the loss of pleasure.
• Depression (geology), a sunken geological formation.
• Depression (economics), a longer-lasting and more severe economic downturn than a recession.
  • The Great Depression, a severe economic recession in the 1930s.
• Depression (meteorology), an area of low atmospheric pressure associated with cyclones and weather fronts.
• Depression (physiology), a lowering, in particular a reduction in a particular biological variable or the function of an organ, contrasted to elevation.

Deprese | Depression (Begriffsklärung) | Depresión (desambiguación) | Dépression | Depresija | Depressione | Depressie | Depresjon | Depresja | Depressão | Депресія