PHASE
| Acronym | Definition |
|---|---|
| PHASE | Personal Hygiene and Sanitation Education (est. 1998; GlaxoSmithKline) |
| PHASE | Physics of Hard Spheres Experiment |
| PHASE | Prevent Heart Attacks and Strokes Everyday (Kaiser Permanente) |
| PHASE | Parallel and HPC Application Software Exchange |
| PHASE | Project for Healthy Adolescent Sexual Expression |
| PHASE | Public Health Air Surveillance Evaluation (US CDC and US EPA) |
| PHASE | Permanent Housing Assistance Services (California) |