Tokyo, city and capital of Tokyo to (metropolis) and of Japan. It is located at the head of Tokyo Bay on the Pacific coast of central Honshu. It is the focus of the vast metropolitan area often called Greater Tokyo, the largest urban and industrial agglomeration in Japan.

The city is built on low, alluvial plains and adjacent upland hills. The climate is mild in winter and hot and humid in the summer. Early summer and early autumn are rainy seasons; two or three typhoons usually occur during September and October.

The metropolitan area is the largest industrial, commercial, and financial centre in Japan. Many domestic and international financial institutions and other businesses are headquartered in central Tokyo. The city is an important wholesale centre, where goods from all parts of the country and the world are distributed. Tokyo is part of the Keihin Industrial Zone, centred on the western shore of the bay, which has become the country’s leading manufacturing region. Light and labour-intensive industries predominate in the city, notably printing and publishing and the manufacture of electronic equipment.