| Acronym | Definition |
|---|
| FSR | Financial Strength Rating |
| FSR | Financial Services Reform (Australia) |
| FSR | Frühstyxradio (German radio comedy show) |
| FSR | Fox Sports Radio |
| FSR | For Some Reason |
| FSR | Free Spectral Range |
| FSR | Field Service Representative |
| FSR | Full Scale Range |
| FSR | Forest Service Road |
| FSR | Force Sensing Resistor |
| FSR | Floor Space Ratio (architecture) |
| FSR | Feasibility Study Report |
| FSR | First Strike Ration (Natick compact, eat-on-the-move assault ration, equivalent in calories to 3 MRE's) |
| FSR | Financial Services Roundtable (formerly Bankers Roundtable) |
| FSR | Force-Sensitive Resistor (electronics) |
| FSR | Fisheye State Routing (communication protocol) |
| FSR | Feedback Shift Register |
| FSR | Farming System Research |
| FSR | Financial Service Representative |
| FSR | Futuristic Sex Robotz (rap group) |
| FSR | Fractional Synthetic Rate |
| FSR | Family Support Registry (Denver, Colorado, USA) |
| FSR | Formula SimRacing |
| FSR | Fractionated Stereotactic Radiotherapy |
| FSR | Full Service Restaurant |
| FSR | Fractionated Stereotactic Radiosurgery (medical/cancer treatment) |
| FSR | Fort Smith Railroad |
| FSR | Facilities Service Request |
| FSR | Filter Self-Rescuer (mining) |
| FSR | Forecast Stock Return |
| FSR | Field Service Report |
| FSR | Fluorosilicone Rubber |
| FSR | Former Soviet Republic |
| FSR | Force Structure Review |
| FSR | Florida State Referees, Inc (soccer) |
| FSR | Full Scale Reference |
| FSR | Flood Study Report |
| FSR | Foundation for Strategic Research (Sweden) |
| FSR | Facility Site Review (inspection) |
| FSR | Frequency-Shifted Reference |
| FSR | Finite State Recognizer |
| FSR | Fast SRNC Relocation |
| FSR | Forestburg Scout Reservation (Forestburgh, NY Boy Scout camp) |
| FSR | Full Spectrum Recorder |
| FSR | Fourier Series Representation |
| FSR | Financial Systems Review |
| FSR | Family Service Radio |
| FSR | Final Systems Review |
| FSR | Frequency Scan Radar |
| FSR | Free Space Range |
| FSR | Facilities Support Requirement |
| FSR | Full Scale Record (instrumentation) |
| FSR | Facility Safety Review |
| FSR | Fjernskriver Ratt (Norwegian) |
| FSR | Fund Summary Record (USAF purchase requests) |
| FSR | Fielded System Review |
| FSR | Fielding Status Review |
| FSR | Foreign Separate Rations |
| FSR | Flight Safety Rules |
| FSR | Finlandssvensk Radio |
| FSR | Functional System Requirement |
| FSR | Frequency Select Receiver |
| FSR | Functional Support Requirement |
| FSR | Fixed Price Contracts with Price Redetermination |
| FSR | Freight Service Report |
| FSR | Flexible Sheet Roofing (construction) |