| SINC | Self Interfacing Neural Code 
| Others |
| SINC | Servei d'Informacio Nacional Catala
| Others |
| SINC | Singapore International Neuroscience Conference
| Others |
| SINC | Single Income No Cooking
| Others |
| SINC | Site of Importance for Nature Conservation
| Others |
| SINC | Social Impact and Nonprofit Community
| Others |
| SINC | Species in Need of Conservation
| Others |
| SINC | Spiritual And Intellectual Nurture Committee
| Others |
| SINC | Sports Industry Networking and Career
| Others |
| SINC | Steel Iron Nickel And Cobalt
| Others |
| SINC | Students for Innovation and Cooperation
| Others |
| SINC | Super Intelligent Noise Cancellation
| Others |
| SINC | Syndicate of International Non Compliance
| Others |