| PENS | Package Exchange Notification Service 
| Others |
| PENS | Patterned Electrical Neuromuscular Stimulation
| Others |
| PENS | Pediatric Endocrinology Nursing Society
| Others |
| PENS | Percutaneous Electrical Nerve Stimulation
| Others |
| PENS | Player Experience of Need satisfaction
| Others |
| PENS | Politeknik Elektronika Negeri Surabaya
| Others |
| PENS | Portcullis Enterprise Network Security
| Others |
| PENS | Psychological Ethics and National Security
| Others |