Literae humaniores, nicknamed Greats, is an undergraduate course focused on classics (ancient Rome, ancient Greece, Latin, ancient Greek, and philosophy) at the University of Oxford and some other universities. The Latin name means literally "more human literature" and was in contrast to the other main field of study when the university began, i.e. res divinae (or literae divinae, lit. div.), also known as theology. Lit. hum., is concerned with human learning, and lit. div. with learning treating of God. In its early days, it encompassed mathematics and natural sciences as well. It is an archetypal humanities course.

The University of Oxford's classics course, also known as greats, is divided into two parts, lasting five terms and seven terms respectively, the whole lasting four years in total, which is one year more than most arts degrees at Oxford and other English universities.

The course of studies leads to a Bachelor of Arts degree which will automatically entitle the holder to the Master of Arts degree subsequently. Throughout, there is a strong emphasis on first hand study of primary sources in the original Greek or Latin.

In the first part (honour moderations or mods) students concentrate on Latin and/or Ancient Greek; in the second part students choose eight papers from the disciplines of classical literature, Greek and Roman history, philosophy, archaeology, and linguistics. The teaching style is very traditional and consists of weekly tutorials in each of the two main subjects chosen, supplemented by a wide variety of lectures. The main teaching mechanism remains the weekly essay, one on each of the two main chosen subjects, typically written to be read out at a one-to-one tutorial; this affords all students plenty of practice at writing short, clear, and well-researched papers.

Changed in the late 20th century, a strong emphasis remains on study of original texts in Latin and Greek, assessed by prepared translation and by gobbet (a short commentary on an assigned primary source). In a typical "text" paper candidates will be expected first to translate into English three or four long passages selected by the examiners from the set books; and secondly to comment on each of an extended set of short paragraphs or sentences from the same set texts; marks are awarded for recognising the context and the significance of each excerpt.

The mods (moderations – exams conducted by moderators) course runs for the first five terms of the course. The traditional aim was for students to develop their ability to read fluently in Latin and Greek. The works of Virgil and the two Homeric epics were compulsory, and other works had to be chosen from a given list. There were also unseen translations from both languages, and compulsory translation into prose, and voluntary into verse, in both languages. The course has now changed to reflect the continuing decline in the numbers of applicants who have had the opportunity to study Greek and Latin at school.

Since the early 1970s, it has been possible to begin learning Greek during the preparation for mods (an option originally called mods-B, the brainchild of John G. Griffiths of Jesus College). More recently, due to the omission of Latin and Greek from the National Curriculum since 1988, options have been added for those also without Latin A-level.

There are now five alternative paths through mods.