Respiration may refer to:

Biology[edit]

• Cellular respiration, the process in which nutrients are converted into useful energy in a cell
  • Anaerobic respiration, cellular respiration without oxygen
  • Maintenance respiration, the amount of cellular respiration required for an organism to maintain itself in a constant state
• Respiration (physiology), transporting oxygen and carbon dioxide between cells and the external environment
  • Respiratory system, the anatomical system of an organism used for respiration
  • Breathing, passing air in and out through respiratory organs
  • Aquatic respiration, animals extracting oxygen from water
  • Artificial respiration, the act of simulating respiration, which provides for the overall exchange of gases in the body by pulmonary ventilation, external respiration and internal respiration
  • Cheyne–Stokes respiration, an abnormal pattern of breathing characterized by progressively deeper and sometimes faster breathing, followed by a gradual decrease that results in a temporary stop in breathing called an apnea
• Respiration, a journal by Karger Publishers

Ecology[edit]

• Carbon respiration, a concept used in calculating carbon (as CO₂) flux occurring in the atmosphere
• Ecosystem respiration, measurement of gross carbon dioxide production by all organisms in an ecosystem
• Root respiration, exchange of gases between plant roots and the atmosphere
• Photorespiration, enzymatic combination of RuBP with oxygen

Entertainment[edit]

• "Respiration" (song), a 1999 single by Black Star
• "Respire" (song), a 2003 song by Mickey 3D
• Respire (film), a 2014 French drama film
• Respiration (album), a 2022 album by Cecil Taylor