Loosely, the former group of 8 industrialised countries comprising Canada, France, Germany, Italy, Japan, Russia, the United Kingdom and the United States. The European Union was also represented.
More strictly, a meeting of the heads of government from those countries.
Also known as the 'Group of Eight' or 'G-8'.
Suspension of Russia
Meetings of the G8 were suspended in March 2014 following Russian involvement in Crimea.
In 2017 Russia formally left the G8.
Since 2014, the members of the former G8, excluding Russia, have met as the G7.