title: Atra
text: # Atra
  
  Atra or ATRA may refer to:
  
  ## Places
  
  * Atra, Estonia
  * Hatra, an ancient city in modern-day Iraq
  
  ## Other uses
  
  * Advanced Transit Association
  * All-trans retinoic acid, or tretinoin, a medication
  * American Taxpayer Relief Act of 2012
  * American Tort Reform Association
  * Atra razor, produced by the Global Gillette company
  