The 34th G8 summit was a meeting in 2008 for the leaders of Canada, the European Commission, France, Germany, Italy, Japan, Russia, the United Kingdom and the United States.

This meeting of the Group of Eight (G8) was the 34th meeting in a series which began in 1976. The G8 and the summit are part of a "consultative process and not an international organization".

The meeting took place in Japan at Tōyako (洞爺湖, Tōya-ko) on the northern island of Hokkaidō. The international group of leaders met from July 7–9, 2008.