ECP
- Beretta APX
- Breidbart Index
- Early Commissioning Program
- East Coast Park
- East Coast Parkway
- Eastman Color Positive
- Economic calculation problem
- Effective Core Potential
- Election Commission of Pakistan
- Electrochemical corrosion potential
- Electrochemical potential
- Electronic Check Processing
- Electronic Communications in Probability
- Electronically controlled pneumatic brakes
- Emergency Care Practitioner
- Emergency contraceptive pill
- Emerging Capital Partners
- Empty category principle
- English Collective of Prostitutes
- English College in Prague
- Eosinophil cationic protein
- Episcopal Church in the Philippines
- Equivalence class partitioning
- European Association for Psychotherapy
- European Committee for the Prevention of Torture
- Evangelical Churches of Pentecost
- Extended Capability Port
- External counterpulsation
- Extracorporeal photopheresis
- Eye Care Professional
- Forward operating base
- Minimally invasive glaucoma surgery
- MovieLabs
- Northwest Florida Beaches International Airport
- SLC Punk!
- Singapore
- École Centrale Paris