| Acronym | Sense | Language | Topics |
|---|---|---|---|
| PSA | Pacific Sociological Association | In English | → Associations → Sociology |
| PSA | Prabhu Dasi Sisters of Ajmeer | In English | → Roman catholic church |
| PSA | Power and Servoassembly | In English | → Mechanical engineering → Electrical engineering |
| PSA | Power Servoamplifier | In English | → Mechanical engineering → Electrical engineering |
| PSA | Power Switching Assembly | In English | → Energy economics → Electrical engineering |
| PSA | Preferred Storage Area | In English | |
| PSA | Presleep Activity | In English | → Medicine |
| PSA | Pressure Switch Assembly | In English | |
| PSA | Payload Service Area | In English | → Astronautics |
| PSA | Producibility, Supportability, and Affordability | In English | → Maintenance and logistics |
| PSA | Payload Support Avionics | In English | → Aeronautics, aircraft → Astronautics |
| PSA | Postsleep Activity | In English | |
| PSA | Pàrtaidh Shòisealach na h-Alba (www.scottishsocialistparty.org) = SSP | Scottish Socialist Party | In English |
In Scottish Gaelic | → Socialist parties → United Kingdom |
| PSA | Poultry Science Association (www.poultryscience.org) | In English | → Associations → Zoology → Agricultural sciences |
| PSA | Probabilistic Safety Assessment | In English |