Adidas Ltd. AG ( ) is a major German sports apparel manufacturer and part of the Adidas Group, which consists of Reebok sportswear company, Taylormade golf company, and Rockport. The company is the second largest sportswear manufacturer in the world . Adidas was founded in 1948 and named after its founder, Adolf (Adi) Dassler. Dassler had been producing shoes since 1920, in Herzogenaurach, near Nuremberg and he was helped by his brother, Rudolf Dassler, who later formed the other shoe company Puma. The company registered as adidas AG (with lower case lettering) on August 18 1949. The company's clothing and shoe designs typically feature three parallel stripes, and this same motif is incorporated into Adidas's current official logo. The company revenue for 2005 was listed at €6.6 billion, or about US $8.4 billion and the 2006 figure was listed at €10.084 billion, or about $13.625 billion.

The phrase All Day I Dream About Sport is sometimes used to market the brand as if Adidas were an acronym, but a 2007 book of that name confirms that Adidas simply derives from Dassler.