Four Corners is Australia's longest-running investigative journalism/current affairs television program. Broadcast on ABC1 in Australia, it premiered on 19 August 1961 and is still running. Founding producer Robert Raymond (1961-62) and his successor Allan Ashbolt (1963) did much to set the ongoing tone of the program.

Based on the Panorama concept, the program addresses a single issue in depth each week, showing either a locally produced program or a relevant documentary from overseas. The program has won many awards for investigative journalism, and broken many stories that had previously had no exposure in the Australian media. A notable early example of this was the show's epoch-making 1962 exposé on the appalling living conditions endured by many Aboriginal Australians living in rural New South Wales.

The Four Corners is the survey point at the intersection of the four U.S. states of Colorado, Utah, New Mexico, and Arizona and the high desert plateau region surrounding that point in the southwestern United States. It is the only point in the United States where four states touch. Three of the four state corners are on the Navajo Indian Reservation. The fourth corner, Colorado, is on the Ute Mountain Indian Reservation.

The Four Corners Monument (located at the site) charges a per-person admission fee. The monument is located at the coordinates according to the U.S. National Geodetic Survey. US Highway 160 runs nearby, and New Mexico State Road 597 serves as access road to the monument.

Because the Four Corners is part of a high Colorado Plateau, it is often a center for weather systems, which stabilize on the plateau then proceed eastward toward the central and mountain states. This weather system creates snow and rainfall over the central United States.

Four Corners was parodied in an episode of The Simpsons, in which the Simpson family visits "Five Corners".