ENR may refer to:
In media: Engineering News-Record, a weekly magazine covering the global construction industry Emissora Nacional de Radiodifusão, now Rádio e Televisão de Portugal, the Portuguese public service broadcasting corporation
In organizations: European New Right, a European political far-right movement Energizer Holdings, an American manufacturer that has NYSE code ENR Bureau of Energy Resources, in the U.S. Department of State
In transportation: Egyptian National Railways, the national railway in Egypt Esquimalt and Nanaimo Railway East Norfolk Railway, a former railway in the United Kingdom, now site of the heritage Bure Valley Railway Ennore railway station (station code), a railway station in Chennai, Tamil Nadu, India
Other: Enoyl-acyl carrier protein reductase, an enzyme which catalyzes an essential step in fatty acid biosynthesis Esercito Nazionale Repubblicano (National Republican Army), the army of the Italian Social Republic from 1943 to 1945 Ending Net Receivable, a financial term used by certain credit card companies Excess Noise Ratio, in radio frequency electronics a normalized measure of how much the noise power is above the thermal noise floor