Kaifeng known previously by several names (see below), is a prefecture-level city

Prefecture-level city

A prefectural level city , prefectural city or prefectural level municipality is an administrative division of the People's Republic of China, ranking below a province and above a county in China's administrative structure. Prefectural level cities form the second level of the administrative...

 in east-central Henan

Henan

Henan , is a province of the People's Republic of China, located in the central part of the country. Its one-character abbreviation is "豫" , named after Yuzhou , a Han Dynasty state that included parts of Henan...

 province, Central China. Nearly 5 million people live in the metropolitan area. Located along the southern bank of the Yellow River

Yellow River

The Yellow River or Huang He, formerly known as the Hwang Ho, is the second-longest river in China and the sixth-longest in the world at the estimated length of . Originating in the Bayan Har Mountains in Qinghai Province in western China, it flows through nine provinces of China and empties into...

, it borders the provincial capital of Zhengzhou

Zhengzhou

Zhengzhou , is the capital and largest city of Henan province in north-central China. A prefecture-level city, it also serves as the political, economic, technological, and educational centre of the province, as well as a major transportation hub for Central China...

 to the west, Xinxiang

Xinxiang

Xinxiang is a prefecture-level city in northern Henan province, People's Republic of China. It borders the provincial capital of Zhengzhou to its southwest, Kaifeng to its southeast, Hebi and Anyang to its north, Jiaozuo to its west, and the provinces of Shanxi and Shandong to its northwest and...

 to the northwest, Shangqiu

Shangqiu

Shangqiu is a city in eastern Henan province, Central China. It borders Kaifeng to the northwest, Zhoukou to the southwest, and the provinces of Shandong and Anhui to the northeast and southeast respectively. An ancient city with a rich history, Shangqiu was also the first capital of the Shang...

 to the east, Zhoukou

Zhoukou

Zhoukou is a prefecture-level city in eastern Henan province, People's Republic of China. It borders Zhumadian to the southeast, Xuchang and Luohe to the west, Kaifeng to the northwest, Shangqiu to the northeast, and the province of Anhui on all other sides....

 to the southeast, Xuchang

Xuchang

Xuchang is a prefecture-level city in central Henan province in Central China. It borders the provincial capital of Zhengzhou to the northwest, Kaifeng to the northeast, Zhoukou to the east, Luohe to the southeast, and Pingdingshan to the southwest....

 to the southwest, and the province of Shandong

Shandong

' is a Province located on the eastern coast of the People's Republic of China. Shandong has played a major role in Chinese history from the beginning of Chinese civilization along the lower reaches of the Yellow River and served as a pivotal cultural and religious site for Taoism, Chinese...

 to the northeast.
The Chinese Postal Map Romanisation for the city is Kaifeng whilst its abbreviation is biàn (汴).