Mainliner

Mainliner or Mainliners may refer to:


 * "Mainliner", a person who takes drugs intravenously
 * "Mainliner", a person of the Mainline (Protestant)
 * "Mainliner", a person who lives on the Philadelphia Main Line section of the Philadelphia suburbs
 * "Mainliner", a generic name given to aircraft which flew the Mainline (flight) routes
 * "Mainliner", a specific prefix name given to a number of aircraft operated by United Airlines and possibly others (ex. Mainliner New York, Mainliner Washington, etc.)

In music

 * "Mainliner", a member of The Bryn Mawr Mainliners Men's Barbershop Chorus
 * "Mainliner", a member of Big Tom and The Mainliners, an Irish country music band
 * Mainliner: Wreckage from the Past, a compilation album from the group Social Distortion
 * "Mainliner (band)", is the name of one of the groups formed by Japanese underground musician Asahito Nanjo
 * "Mainliner" is the name of a song by the grindcore group Brutal Truth from their 1994 album Need to Control.

Other

 * Mainliner (racehorse), racehorse that won the 1951 Hambletoninan harness race