The Cambridge Latin Course (CLC) is a series of textbooks published by Cambridge University Press, used to teach Latin to secondary school pupils. It provides a grounding in vocabulary, grammar and sense which allows progression through Common Entrance exams into a Secondary, or, Public School. First published in 1970, the series is in its fifth edition as of April 2019. It has reached high status in the United Kingdom, being the most-used Latin course in the country for secondary school pupils, and being used by 85% of Latin-teaching schools.

Latin is a classical language belonging to the Italic branch of the Indo-European languages. Considered a dead language, Latin was originally spoken in Latium, the lower Tiber area around Rome. Through the expansion of the Roman Republic it became the dominant language in the Italian Peninsula and subsequently throughout the Roman Empire. Even after the fall of Western Rome, Latin remained the common language of international communication, science, scholarship and academia in Europe until well into the early 19th century, when regional vernaculars supplanted it in common academic and political usage—including its own descendants, the Romance languages. For most of the time it was used, it would be considered a dead language in the modern linguistic definition; that is, it lacked native speakers, despite being used extensively and actively.