Allgemeine Elektricitäts-Gesellschaft AG (AEG) (German: "General electricity company") was a German producer of electrical equipment founded as the Deutsche Edison-Gesellschaft für angewandte Elektricität in 1883 in Berlin.

In 1967 AEG joined with its subsidiary Telefunken AG creating Allgemeine Elektricitäts-Gesellschaft AEG-Telefunken. In 1985 Daimler-Benz purchased the AEG-Telefunken Aktiengesellschaft, which was renamed to AEG Aktiengesellschaft and wholly integrated the company in 1996 into Daimler-Benz AG (1998:DaimlerChrysler). The remains of AEG became part of Adtranz and Deutsche Aerospace (1998: DASA, today EADS).

After acquiring the AEG household subsidiary AEG Hausgeräte GmbH in 1994, in 2005 Electrolux obtained the rights to the brand name AEG, which it now uses on some of its products. The AEG name is also licensed to various brand partners under the Electrolux Global Brand Licensing program.

AEG played an important role in the history of the German railways; the company was involved on the development and manufacture of the electrical parts of almost all German electric locomotive series and contributed to the introduction of electrical power in German railways.  Additionally many steam locomotives were made in AEG factories.