| SPLC | S***ing Progressive Law Center 
| Others |
| SPLC | Samsung Printer Language Color
| Others |
| SPLC | Second Primary Lung Cancer
| Others |
| SPLC | Shakedown Propaganda Lies and Corruption
| Others |
| SPLC | Shepherd of the Plains Lutheran Church
| Others |
| SPLC | Smart Predictive Line Controller
| Others |
| SPLC | Socialist Pelosi Liberal Commie
| Others |
| SPLC | Socialist Progressive Liberal Commies
| Others |
| SPLC | Socialist Propaganda Leftwing Commies
| Others |
| SPLC | Software Product Line Conference
| Others |
| SPLC | Software Product Line Conferences
| Others |
| SPLC | Southeastern Pimps Like Clinton
| Others |
| SPLC | Southern Poverty Law Center
| Others |
| SPLC | Southern Poverty Lie Center
| Others |
| SPLC | Specially Privileged Lawyer Cartel
| Others |
| SPLC | Splice
| Others |
| SPLC | Standard Point Location Code
| Others |
| SPLC | Stop Politicizing Legitimate Causes
| Others |
| SPLC | Stuckup Perverted Liberal Childmolesters
| Others |
| SPLC | Student Press Law Center
| Others |
| SPLC | Stupid Peoples Learning Committee
| Others |
| SPLC | Subsidized Permanent Legal Custodianship
| Others |
| SPLC | Super Prosperous Lying Center
| Others |
| SPLC | Sustainable Purchasing Leadership Council
| Others |