Every Which Way but Loose is a 1978 American action comedy film released by Warner Bros., produced by Robert Daley and directed by James Fargo. It stars Clint Eastwood in an uncharacteristic and offbeat comedy role as Philo Beddoe, a trucker and bare-knuckle brawler roaming the American West in search of a lost love while accompanied by his brother/manager, Orville, and his pet orangutan, Clyde. In the process, Philo manages to cross a motley assortment of characters, including a pair of police officers and an entire motorcycle gang (the Black Widows of Pacoima), who end up pursuing him for revenge.

Eastwood's appearance in the film, after his string of Spaghetti Western and Dirty Harry roles, somewhat startled the film industry and he was reportedly advised against making it. Although it was poorly reviewed by critics, the film went on to become an enormous success and became, along with its 1980 sequel Any Which Way You Can, two of the highest grossing Eastwood films. When adjusted for inflation, it ranks as one of the top 250 highest-grossing films of all time.