- 淮南市 huáinánshì HuainanHuainan, a prefecture-level city in Anhui Province [[安徽省|安徽省|an1 hui1 sheng3]]
- 淮南子 huáinánzǐ HuainanziA classic Chinese text from the Western Han dynasty, compiled by Liu An and his circle of scholars; it covers diverse philosophical topics with a core focus on Daoist thought
- 淮南橘,淮北枳 huáinánjúhuáiběizhǐ south of the Huai River is a tangerine, north is a trifoliate orangean idiom meaning that the environment changes the nature of a person or thing, as the same species of plant might produce sweet fruit in the south but bitter fruit in the north
- 淮南鸡犬 huáinánjīquǎn humble followers who gain power through their superior(idiom) people who rise to power or success by clinging to a powerful figure. Originally referring to the legend of the King of Huainan, whose chickens and dogs supposedly also ascended to heaven after eating the remains of his elixir of immortality.
- 淮南鸿烈 huáinánhóngliè Huainanzithe title of a classic Chinese philosophical and scientific text from the Han dynasty, more commonly known by its shorter title