What is "frg"

FRG may refer to:

• Family Readiness Group in the United States Army
• Federal Republic of Germany
  • West Germany
• FMN reductase (NAD(P)H)
• Friendship Radiosport Games
• Functional renormalization group
• Guatemalan Republican Front (Spanish: ), a defunct political party in Guatemala
• Republic Airport in East Farmingdale, New York, United States