RRT

RRT or Rrt may refer to:


 * Radio Reconnaissance Platoon
 * Railroad Tycoon (series)
 * Rainbow Round Table
 * Rapidly exploring random tree
 * Reference Rendering Transform (Academy Color Encoding System)
 * Registered Respiratory Therapist
 * Renal replacement therapy
 * Randomized response technique
 * Rational root theorem in mathematics
 * Refugee Review Tribunal in Australia.
 * Recommended Replacement Time (In Pacemaker and Internal Defibrillator, time to replace the device because of exhaustion of the batteries)
 * Warroad International Memorial Airport (IATA code), airport in Warroad, Minnesota