E&R

E&R stands for Engineering and Repair (US Navy)

E&R

E&R stands for Energy & Resources

E&R stands for Evasion and Recovery (US DoD)

E&R stands for Environmental & Regulatory (various companies)

E&R stands for Ede and Ravenscroft (UK)

E&R stands for Evidence & Reports (Canada)

E&R stands for Evangelisatie en Recreatie (Dutch: Evangelism and Recreation; church)

E&R stands for Exchange & Repair (FAA)

E&R stands for Escape and Resistance