title: Ahr (disambiguation)
text: # Ahr (disambiguation)
  
  Ahr is a tributary of the Rhine River in Germany.
  
  AHR, AhR, Ahr, or AHr may also refer to:
  
  ## Places
  
  * Ahr (South Tyrol), the Ahr tributary in South Tyrol, Italy
  * Ahr Hills, range of low mountains in Germany
  * Ahr (wine region), Germany
  
  ## People
  
  * George W. Ahr (1904–1993), American prelate of the Roman Catholic Church
  * Gustav Elijah Åhr (1996–2017), American singer and songwriter, known professionally as Lil Peep
  
  ## Science and medicine
  
  * aHR, adjusted hazard ratio
  * AHr, ampere hour
  * Airway hyper-responsiveness
  * Aqueous homogeneous reactor
  * Aryl hydrocarbon receptor (AhR), a protein
  
  ## Organizations and companies
  
  * Abbey Holford Rowe, architecture firm
  * Advancing Human Rights
  * Air Adriatic (ICAO airline code AHR), now defunct
  * The American Historical Review, a scholarly journal
  
  ## Other
  
  * Ahirani language (ISO-639-3 code ahr)
  * Assisted Human Reproduction Act
  