EJ may refer to:
- East Jerusalem
- Electronic journalism, an old name for electronic news gathering
- Electro jockey, an individual who uses computers and MIDI devices to mix music as opposed to using records or CD's.
- Environmental justice
- exajoule, an SI unit of energy equal to 10 joules
- External jugular vein
- Expansion joint, architectural/mechanical/structural terms
EJ (formerly known as East Jordan Iron Works or EJIW) is a company based in East Jordan, Michigan. The company is a manufacturer and distributor of iron construction castings and infrastructure access products worldwide. In 2007 the company was awarded the National Utility Contractors Association Associate of the year award.
EJ is a female pop/ urban singer based in London currently signed to Epic Records, Sony.