Classical Chinese, also known as Literary Chinese (; or , meaning
"literary language/speech"; modern vernacular: , meaning "literary language writing"), is the language of the classic literature from the end of the Spring and Autumn period through to either the start of the Qin dynasty or the end of the Han dynasty, a written form of Old Chinese (). Classical Chinese is a traditional style of written Chinese that evolved from the classical language, making it different from any modern spoken form of Chinese. Literary Chinese was used for almost all formal writing in China until the early 20th century, and also, during various periods, in Japan, Ryukyu, Korea and Vietnam. Among Chinese speakers, Literary Chinese has been largely replaced by written vernacular Chinese, a style of writing that is similar to modern spoken Mandarin Chinese, while speakers of non-Chinese languages have largely abandoned Literary Chinese in favor of their respective local vernaculars. Although languages have evolved in unique, different directions from the base of Literary Chinese, many cognates can be still found between these languages that have historically written in Classical Chinese.
Literary Chinese is known as kanbun (漢文, "Han writing") in Japanese, hanmun in Korean (but see also gugyeol) and văn ngôn (文言) or Hán văn (漢文) in Vietnamese.
Classical Chinese refers to the written language of the classical period of Chinese literature, from the end of the Spring and Autumn period (early 5th century BC) to the end of the Han dynasty (AD 220), while Literary Chinese is the form of written Chinese used from the end of the Han dynasty to the early 20th century, when it was replaced by vernacular written Chinese. There is also a stricter definition for the Classical period, ranging from Confucius (551–479 BCE) to the foundation of the Qin dynasty.
Literary Chinese is often also referred to as "Classical Chinese", but sinologists generally distinguish it from the language of the early period.