ERT
- EOC Refugee Team
- ERT (company)
- ERT Formula E Team
- ESPN Regional Television
- Earth-received time
- Electrical resistivity tomography
- Elektrooniline Riigi Teataja
- Elizabeth River Tunnels Project
- Emergency Response Team (RCMP)
- Emergency response team
- Encoder receiver transmitter
- Ente Radio Trieste
- Enzyme replacement therapy
- Eritai language
- Eritrean Airlines
- Estrogen receptor test
- Estrogen replacement therapy
- European Racquetball Tour
- European Rally Trophy
- European Round Table for Industry
- Exclusive ride time
- FBI
- Hellenic Broadcasting Corporation
- Nuclear power plant emergency response team