| Acronym | Sense | Language | Topics |
|---|---|---|---|
| SDP | Suomen Sosialidemokraattinen Puolue | In Finnish | → Political parties and movements → Finland |
| SDP | Socijaldemokratska partija (Hrvatske) | In Croatian | → Political parties and movements |
| SDP | Sensor Data Processing | In English | → Data processing → Electronics |
| SDP | Shuttle Data Processor | In English | → Data → Astronautics |
| SDP | Site Data Processor | In English | → Data |
| SDP | Software Development Plan | In English | → Software |
| SDP | Standard Data Processor | In English | → Computer hardware |
| SDP | Strategic Defense Program | In English | → Military affairs → Military engineering |
| SDP | Subsystem Development Plan | In English | |
| SDP | Socijaldemokratska Partija (www.sdp.hr) | In Croatian | → Political parties and movements |
| SDP | Socijaldemokratska Partija Hrvatske (www.sdp.hr) | In Croatian | → Political parties and movements |
| SDP | Service des Pensions | In French | → Personnel management → Social welfare |