TRF

TRF may refer to:

Medicine and Science

 * Terminal restriction fragments, used in measuring telomere length
 * Thyrotropin-releasing factor, a peptide hormone secreted by the hypothalamus
 * Time-restricted feeding, a type of intermittent fasting
 * Transfer RNA-derived fragment
 * TERF1, Telomeric repeat-binding factor 1 (also known as TRF1)

Places

 * Sandefjord Airport, Torp, Norway, IATA code
 * Thief River Falls, Minnesota, USA

Organisations

 * Tactical recognition flash, UK armed forces
 * Texas Renaissance Festival, USA
 * Thoroughbred Retirement Foundation, racehorse rescue organization
 * TRF (group), a J-pop group
 * Regional Federal Courts (Portuguese: Tribunais Regionais Federais), Brazilian Federal appellate courts

Other

 * Tuned radio frequency receiver, a type of radio
 * Trinidadian Creole, by ISO 639 code
 * TRF1, French howitzer
 * Thea Realm Fighters, unreleased fighting game for the Atari Jaguar