| ECP | Eosinophil Cationic Protein | - | Computer Acronyms(common) |
| ECP | Estimated Critical Position | - | Computer Acronyms(common) |
| ECP | Effective Core Potential Approxn.(in Electronic-structure Calcn.) | - | Computer Acronyms(common) |
| ECP | Electrochemical Potential | - | Computer Acronyms(common) |
| ECP | Exchange Core Polarization | - | Computer Acronyms(common) |
| ECP | Exchange Coupled Pair | - | Computer Acronyms(common) |
| ECP | Exponential Corrugated Potential | - | Computer Acronyms(common) |
| ECP | Engineering Change Program | - | Organizations |
| ECP | Engineering Change Proposal | - | Organizations |
| ECP | Engineering Control Proposal | - | Organizations |
| ECP | Explicitly Coded Program | - | Organizations |
| ECP | Engineering Change Proposal | - | Business and Finance |
