Amazon.com, Inc., doing business as Amazon (, AM-ə-zon; UK also , AM-ə-zən), is an American multinational technology company, engaged in e-commerce, cloud computing, online advertising, digital streaming, and artificial intelligence. It is considered one of the Big Five American technology companies; the other four being Alphabet (parent company of Google), Apple, Meta (parent company of Facebook), and Microsoft.

Amazon was founded on July 5, 1994, by Jeff Bezos in Bellevue, Washington. The company originally started as an online marketplace for books but gradually expanded its offerings to include a wide range of product categories. This diversification led to it being referred to as "The Everything Store".

The company has multiple subsidiaries, including Amazon Web Services, providing cloud computing, Zoox, a self-driving car division, Kuiper Systems, a satellite Internet provider, and Amazon Lab126, a computer hardware R&D provider. Other subsidiaries include Ring, Twitch, IMDb, and Whole Foods Market. Its acquisition of Whole Foods in August 2017 for US$13.4 billion substantially increased its market share and presence as a physical retailer. Amazon also distributes a variety of downloadable and streaming content through its Amazon Prime Video, MGM+, Amazon Music, Twitch, Audible and Wondery units. It publishes books through its publishing arm, Amazon Publishing, film and television content through Amazon MGM Studios, including the Metro-Goldwyn-Mayer studio, which was acquired in March 2022, and owns Brilliance Audio and Audible, which produce and distribute audiobooks, respectively.