Rugby league sevens (or simply sevens) is a seven-a-side derivative of rugby league football, which is usually a thirteen-a-side sport. The game is substantially the same as full rugby league, with some rule changes and shorter games. Sevens is usually played in festivals, as its shorter game play allows for a tournament to be completed in a day or over a single weekend.

As well as being played by club sides, rugby league sevens is particularly popular with social teams, formed in the workplace or from the patrons of a public house for example, as it is often difficult in these places to form a full squad of 13 players and four substitutes of regular players. Some tournaments prefer to play rugby league nines (rugby league with nine players on each side) to distinguish it from rugby union sevens.

The game of rugby sevens dates back to its invention by Ned Haig in Melrose in the Scottish Borders in 1883, just over a decade before the schism in rugby football in 1895, which led to the creation of rugby league and rugby union. However, rugby sevens did not spread outside Scotland before the 1920s. That said, the larger part of Scotland's rugby league players have come from Borders backgrounds.

Rugby league football, usually called rugby league, is a full contact sport played by two teams of thirteen players on a rectangular grass field. One of the two codes of rugby football, it originated in England in 1895 as a split from the Rugby Football Union over the issue of payments to players. Its rules gradually changed in an attempt to produce a more entertaining game for spectators. It is frequently cited as the toughest, most physically demanding of team sports.

Points get scored by carrying or kicking a ball down a field, crossing the ball over the opponent's designated goal line and grounding the ball; this is called a try. After a try, the scoring team gains a free kick to try at goal with a conversion – a kick for further points. The opposing team attempts to stop the attacking side gaining points by preventing their progress up the field by tackling the player carrying the ball.

Rugby league is among the most popular sports in England,Australia,New Zealand,France,Tonga and Papua New Guinea where it is considered the national sport. The European Super League and Australasian National Rugby League are the premier club competitions. Rugby league is played internationally, predominantly by European, Australasian and Pacific countries, and is governed by the Rugby League International Federation. The current World Cup holders are New Zealand.