| RISC | A Reduced Information Set Computer 
| Others |
| RISC | Rapid Information Sorting Capacity
| Others |
| RISC | Rchitecturesreduced Instruction Set Computers
| Others |
| RISC | Re Inventing Schools Coalition
| Others |
| RISC | Real Internet Search Computer
| Others |
| RISC | Reality In Seeking Christ
| Others |
| RISC | Recovery Industry Services Company
| Others |
| RISC | Reduce Instruction Set Computer
| Others |
| RISC | Reduced Instruction Set Chip
| Others |
| RISC | Reduced Instruction Set Computer
| Others |
| RISC | Reduced Instruction Set Computing
| Others |
| RISC | Reduced Introduction Set Computer
| Others |
| RISC | Reduces Instruction Set Controller
| Others |
| RISC | Regulatory Information Service Center
| Others |
| RISC | Reliability Issues Steering Committee
| Others |
| RISC | Rental Industry Secure Customer
| Others |
| RISC | Reporters Instructed in Saving Colleagues
| Others |
| RISC | Research and Information Support Center
| Others |
| RISC | Research Institute for Symbolic Computation
| Others |
| RISC | Research on the Integrated Science Curriculum
| Others |
| RISC | Research, Innovation, Scholarship, and Creativity
| Others |
| RISC | Resources Information Standards Committee
| Others |
| RISC | Responsible Internet Service Companies
| Others |
| RISC | Responsive Intermittent Storage Circuit
| Others |
| RISC | Restricted Instruction Set Computer
| Others |
| RISC | Risk and Incident Sharing and Coordination
| Others |
| RISC | Risk and Infrastructure Science Center
| Others |
| RISC | Risk Integrated System of Closure
| Others |
| RISC | RNA Induced Silencing Complex
| Others |
| RISC | RNA-Induced Silencing Complex
| Others |
| RISC | Romulan Imperial Space Control
| Others |
| RISC | Rotary Idle Speed Control
| Others |
| RISC | Rural Infrastructure And Services Commons
| Others |