Err is the verb form of error. Err, err or ERR may refer to: Geography Err, Pyrénées-Orientales, a commune in the Pyrénées-Orientales department, France Errachidia Province, Morocco, by ISO 3166-2:MA code Piz d'Err, a mountain in the Albula Alps in Switzerland Science and technology err, the ISO 639-1 alpha-2 code for the extinct Erre language err, a particular constructor in tagged union data structures Estrogen related receptor and particular members of the orphan nuclear receptor family: ERRα ERRβ ERRγ European Romantic Review, a scholarly peer-review journal devoted to the interdisciplinary study of nineteenth-century culture Other uses Edmonton Radial Railway, a former streetcar service in Edmonton, Alberta Eestimaa Rahvarinne, the Estonian Popular Front Eesti Rahvusringhääling, a radio and television organization in Estonia Einsatzstab Reichsleiter Rosenberg, a Nazi organization which appropriated cultural property during World War II Epsilon Rho Rho, a fictional fraternity in the "Mars University" episode of Futurama Era Alaska, a regional airline which uses the ICAO designation ERR Err, a fictional character in the animated comedy Aqua Teen Hunger Force Errol Airport, Errol, New Hampshire, by IATA designator People with the surname Lydie Err (born 1949), a Luxembourgish politician See also ER (disambiguation) Erro (disambiguation) Error (disambiguation)