Erg, Ergs or ERG may also refer to:
Arts and entertainment Mikey Erg (born 1980), American musician Erg (character), a fictional character in the Marvel Comics Universe Erg (Hyperion), a creature in the Hyperion Cantos series by Dan Simmons
Organisations Education Reference Group, in Connecticut, US Erg (company), an Italian energy company Efficiency and Reform Group (May 2010 – October 2014), former part of the Cabinet Office of the UK Eurasian Resources Group, a Luxembourgish mining and smelting company European Research Group, anti-EU group of British Conservative MPs Videlli, an Australian smart card ticketing system manufacturer formerly known as ERG Group
Places English Riviera Geopark, in Torbay, England Erbogachen Airport (IATA code), Russia
Science and technology erg (unit), unit of energy, equal to 10−7joules Electron-releasing group Electroretinography, or electroretinogram Erg (landform), sand dune field ERG (gene) ERG theory, in psychology Exploration of Energization and Radiation in Geospace, now Arase, a Japanese scientific satellite
Other uses Employee resource group, groups of employees who join together in their workplace Emergency Response Guidebook, a hazardous-materials (HAZMAT) reference book Erg (indoor rower) Erg (tug), a Canadian tug, sunk in Halifax Harbour in 1943 Ergative case