The mainstream is the prevalent current thought that is widespread.[1][2]

It includes all popular culture and media culture, typically disseminated by mass media. This word is sometimes used in a pejorative sense by subcultures who view ostensibly mainstream culture as not only exclusive but artistically and aesthetically inferior.[3]

It is to be distinguished from subcultures and countercultures, and at the opposite extreme are cult followings and fringe theories.

In the United States, mainline churches are sometimes referred to synonymously as "mainstream."[4][5]