EWR is the IATA airport code for Newark Liberty International Airport.
EWR may also refer to: Rail East West Rail, a planned rail line in England East-West Railway, a planned rail line in Nepal Elkhart and Western Railroad, a railroad in Indiana, United States East Worthing railway station, Sussex, England (Network Rail station code) Other uses
Early-warning radar, a radar detection system Entwicklungsring Süd, a German aircraft manufacturer Extreme Warfare Revenge, a computer game