Yunnan

| w = | mi = | y = Wàhn-nàahm | j = Wan4-naam4 | ci = | wuu = Yiuin^平-noe^平 | poj = Hûn-lâm | h = Yùn-nàm | l = "South of the colorful clouds"（彩雲之南 / 彩云之南） | order = st | othername = | lang1 = Yi | lang1_content = ꒊꆈ
''yyp nuo'' | lang2 = Tai Lue | lang2_content = ᦍᦲᧃᧉᦓᦱᧃᧉ
''jin naan'' | lang3 = Lisu | lang3_content = ꓬꓱ-ꓠ
''ye na'' | lang4 = Tibetan | lang4_content = ཡུན་ནན་
''yun nan'' | lang5 = Northern Thai | lang5_content = ᩅᩥᩮᨵᩉᩁᩣ᩠ᨩ
''Witheharat'' | lang6 = Thai | lang6_content = มณฑลยูนนาน
''Mṇṯhl yū n nān'' | lang7 = Vietnamese | lang7_content = Vân Nam
雲南 | lang8 = Lao | lang8_content = ຢຸນນານ
''yun nān'' | lang9 = Burmese | lang9_content = ယူနန်ပြည်နယ်
''yunanpranynai'' | lang10 = Shan | lang10_content = ယူႇၼၢၼ်ႇ၊ မိူင်း
''yū⸒nān⸒, möṅː'' }}

Yunnan, ; ; }} is an inland province in Southwestern China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is Kunming. The province borders the Chinese provinces of Guizhou, Sichuan, autonomous regions of Guangxi and Tibet, as well as Southeast Asian countries Myanmar (Burma), Vietnam, and Laos. Yunnan is China's fourth least developed province based on disposable income per capita in 2014.

Yunnan is situated in a mountainous area, with high elevations in the Northwest and low elevations in the Southeast. Most of the population lives in the eastern part of the province. In the west, the altitude can vary from the mountain peaks to river valleys as much as . Yunnan is rich in natural resources and has the largest diversity of plant life in China. Of the approximately 30,000 species of higher plants in China, Yunnan has perhaps 17,000 or more. Yunnan's reserves of aluminium, lead, zinc and tin are the largest in China, and there are also major reserves of copper and nickel. Historically, the southwestern Silk Road to Bhitargarh in Bangladesh passed through modern Yunnan.

Parts of Yunnan formed the Dian Kingdom during the 3rd and 2nd centuries BC. The Han dynasty conquered the Dian Kingdom in the late 2nd century BC, establishing the Yizhou Commandery in its place. During the chaos of the Three Kingdoms period, imperial Chinese authority in Yunnan weakened, and much of the region came under the control of the Cuanman. The area was later ruled by the Sino-Tibetan-speaking kingdom of Nanzhao from (738–937), followed by the Bai-ruled Dali Kingdom (937–1253). After the Mongol conquest of the region in the 13th century, Yunnan was conquered and ruled by the Ming dynasty.

From the Yuan dynasty onward, the area was part of a central-government sponsored population movement towards the southwestern frontier, with two major waves of migrants arriving from Han-majority areas in northern and southeast China. As with other parts of China's southwest, Japanese occupation in the north during World War II forced another migration of Han people into the region. These two waves of migration contributed to Yunnan being one of the most ethnically diverse provinces of China, with ethnic minorities accounting for about 34 percent of its total population. Major ethnic groups include Yi, Bai, Hani, Zhuang, Dai, and Miao. Yunnan has also been identified as the birthplace of tea, and as the region of origin of the plant genus ''Cannabis''. Provided by Wikipedia