Metro S.A. is a Greek supermarket chain based in the Metamorfosi suburb of Athens, Greece.
It was established in 1976 as a partnership of eight independent grocery stores.
In the same year, Metro opened its first self-branded supermarket in Athens.
62 of its stores (usually sized between 1000-2000 m2) operate under the brand name My Market, while the remaining 46 (usually sized over 2000 m2) operate under the brand name Metro Cash & Carry.
Metro is the sixth largest supermarket chain in Greece as measured by market share.