EIS
- .ee
- Ais (mythology)
- Eastern Independent Schools of Melbourne
- Edmonton International Speedway
- Educational Institute of Scotland
- Egon Eis
- Eisbach (Rhine)
- Ekamai International School
- Electrochemical impedance spectroscopy
- Electrolyte–insulator–semiconductor sensor
- Electronic image stabilization
- Embryo-carrying interstellar starship
- Emergency Infant Services
- English Institute of Sport
- English for Integrated Studies
- Enhanced Imaging System
- Enterprise Investment Scheme
- Enterprise information system
- Environmental impact statement
- Epidemic Intelligence Service
- Era International School
- Escuela Internacional Sampedrana
- Essence International School
- Estrogen insensitivity syndrome
- European International School
- European International School Ho Chi Minh City
- Evolving intelligent system
- Executive information system
- Expressive Intelligence Studio
- Extreme Ice Survey
- E♯ (musical note)
- Frederick Eis
- Hinode (satellite)
- Maria Eis
- Otto Eis
- Terrance B. Lettsome International Airport