Li or li may refer to:

• one of various romanizations of Li (surname) or Lee (Korean name).
• Li people (黎族, lí zú), an ethnic group.
• Li (unit) (里), a traditional unit of distance used in East Asia.
• Li (hornless dragon), a mythical, dragonlike beast in Chinese mythology.
• Li (禮), the Confucian concept of "propriety."
• Prunus salicina (李), Chinese plum.
• a painting by the surrealist H. R. Giger of his girlfriend of the same name.
• Li, a village in Norway.

Li or li may be an abbreviation for:

• Lithium, the chemical element.
• Liechtenstein (ISO 3166-1 alpha-2 country code)
• Limburgish language (ISO 639 alpha-2, li)
• Liberia (NATO country code)
• several rivers in China, e.g., Lishui River and Lijiang River.
• Amphoe Li, a district in Lamphun Province, Thailand.
• LIAT (IATA airline designator)
• Light intensification: see image intensifier

LI may be an acronym for:

• In Analysis LI may stand for Linear Independence
• The logarithmic integral.
• Italy, San Marino, and the Vatican City State (ICAO region code)
• Liberal International
• Linux International
• Long Island, New York (see also Long Island (disambiguation))
• In Roman numerals, LI denotes the number 51
• Length Indicator, in International Organization for Standardization standard

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