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