| FRK | Fast Response type K thermocouple
| Others |
| FRK | Federatia Romana de Karting
| Others |
| FRK | Fixed Rank Kriging
| Others |
| FRK | Flatcoated Retriever Klubben
| Others |
| FRK | Foil Reinforced Kraft
| Others |
| FRK | Fr Richard Kirkham
| Others |
| FRK | Frankish: an extinct language of Germany
| Others |
| FRK | Fregate Island Airport, Fregate Island, Seychelles Islands, Indian Ocean
| Others |
| FRK | Frevert Ramsey Kobes
| Others |
| FRK | Fuel Rail Kit
| Others |
| FRK | Furniture Refinishing Kit
| Others |
| FRK | Fushin Ryu Karate
| Others |
| FRK | Fyn related kinase
| Others |
| FRK | Fyn-Regulating Kinase
| Others |