Hainanese dialect in the context of "Language Atlas of China"

Southern Min (simplified Chinese: 闽南语; traditional Chinese: 閩南語; pinyin: Mǐnnányǔ; Pe̍h-ōe-jī: Bân-lâm-gí/gú; lit. 'Southern Min language'), Minnan (Mandarin pronunciation: [mìn.nǎn]) or Banlam (Min Nan Chinese pronunciation: [bàn.lǎm]), is a group of linguistically similar and historically related Chinese languages that form a branch of Min Chinese spoken in Fujian (especially the Minnan region), most of Taiwan (many citizens are descendants of settlers from Fujian), Eastern Guangdong, Hainan, and Southern Zhejiang. Southern Min dialects are also spoken by descendants of emigrants from these areas in diaspora, most notably in Southeast Asia, such as Singapore, Malaysia, the Philippines, Indonesia, Brunei, Southern Thailand, Myanmar, Cambodia, Southern and Central Vietnam, as well as major cities in the United States, including in San Francisco, in Los Angeles and in New York City. Minnan is the most widely-spoken branch of Min, with approximately 34 million native speakers as of 2025.

The most widely spoken Southern Min language is Hokkien, which includes Taiwanese.Other varieties of Southern Min have significant differences from Hokkien, some having limited mutual intelligibility with it, others almost none. Teochew, Longyan, and Zhenan are said to have general mutual intelligibility with Hokkien, sharing similar phonology and vocabulary to a large extent. On the other hand, variants such as Datian, Zhongshan, and Qiong-Lei have historical linguistic roots with Hokkien, but are significantly divergent from it in terms of phonology and vocabulary, and thus have almost no mutual intelligibility with Hokkien. Linguists tend to classify them as separate languages.