Hanna-Barbera was an American animation studio and production company, which was active from 1957 until its absorption into Warner Bros. Animation in 2001. Founded on July 7, 1957 by Tom and Jerry creators William Hanna and Joseph Barbera, it was headquartered on Cahuenga Blvd from 1960 to 1998, then subsequently at the Sherman Oaks Galleria in Sherman Oaks. In 1958, the studio debuted The Huckleberry Hound Show, then The Flintstones in 1960.

An animation studio is a company producing animated media. The broadest such companies conceive of products to produce, own the physical equipment for production, employ operators for that equipment, and hold a major stake in the sales or rentals of the media produced. They also own rights over merchandising and creative rights for characters created/held by the company, much like authors holding copyrights. In some early cases, they also held patent rights over methods of animation used in certain studios that were used for boosting productivity. Overall, they are business concerns and can function as such in legal terms.