| ARC | Ames Research Center (NASA) | - | Atmospheric Research Center |
| ARC | Astrophysical Research Consortium | - | Atmospheric Research Center |
| ARC | AIDS-related Complex | - | Computer Acronyms(common) |
| ARC | Accelerating Rate Calorimetry | - | Computer Acronyms(common) |
| ARC | Advanced Regulatory Control | - | Computer Acronyms(common) |
| ARC | Antireflection Coating | - | Computer Acronyms(common) |
| ARC | Aggregation Of Red Cells | - | Organizations |
| ARC | Ames Research Center | - | Organizations |
| ARC | Arc-second Raster Chart - Association For Retarded Citizens - Appalachian Regional Commission | - | Astronomy |
| ARC | Ames Research Center | - | Business and Finance |
| ARC | Antarctic Research Center | - | Business and Finance |
| ARC | Applied Research Corporation | - | Business and Finance |
| ARC | Accelerating Rate Calorimetry | - | Business and Finance |
