Daye (Chinese: 大冶; pinyin: Dàyě) is a county-level city in eastern Hubei province, China.

As it is usually the case with county-level cities, Daye includes both an urban core and a fair amount of rural land in all directions, with smaller townships (zhen) such as Dajipu (大箕铺).

Daye sits on the south-eastern border of the heavily industrialized Wuhan/Ezhou/Huangshi metropolitan area; south of it, the much more rural Yangxin County begins.

The city's name means "great smelter" (大冶), referencing the metal smelting which took place in the area dating back to the Tang dynasty.

[9] Daye gained great importance during the 1890s, when the city began producing iron en masse for the nascent Chinese railroad industry, a major hub of which was located shortly down the Yangtze River in Hankou.

[9] As recently as the World War II period, Daye included much of today's prefecture-level city of Huangshi.

[7] Daye's population is largely Han Chinese, with just 830 residents belonging to China's recognized ethnic minorities.

[14] In recent years, many ethnic minorities have moved to Daye seeking economic opportunities, and thus, largely reside in the city's urban areas.

[9] Daye's coal power plants provide a major source of electricity for large cities in the region, such as Huangshi and Wuhan.

[9] Common crops grown in Daye include rice, wheat, sweet potato, maize, soybean, peas, mung bean, rapeseed, peanut, sesame, ramie, and cotton.

[11] Daye is also home to large amounts of domesticated animals, such as pigs, cows, sheep, dogs, chickens, ducks, geese, and pigeons.