YFF or Yff may refer to:
Penticton Regional Airport (IATA: YFF), airport in Penticton, British Columbia, Canada , mathematician Yff center of congruence, special point associated to a triangle Yff conics, family of conics associated to a triangle Yerkes Future Foundation, nonprofit owning the Yerkes Observatory in Williams Bay, Wisconsin, United States Yorkton Film Festival, annual film festival in Yorkton, Saskatchewan, Canada The Young Fresh Fellows, American alternative rock band Yunfeng Financial, Chinese financial services company Yungaburra Folk Festival, former name of the Tablelands Folk Festival in Yungaburra, Queensland, Australia