Regius Professor in the context of "Regius Professor of Greek (Oxford)"

Alexander Bain (11 June 1818 – 18 September 1903) was a Scottish philosopher and educationalist in the British school of empiricism and a prominent and innovative figure in the fields of psychology, linguistics, logic, moral philosophy and education reform. He founded Mind, the first ever journal of psychology and analytical philosophy, and was the leading figure in establishing and applying the scientific method to psychology. Bain was the inaugural Regius Chair in Logic and Professor of Logic at the University of Aberdeen, where he also held Professorships in Moral Philosophy and English Literature and was twice elected Lord Rector of the University of Aberdeen.

The Regius Professor of History (until 2011, Modern History) at the University of Oxford is a long-established professorial position. Holders of the title have often been medieval historians. The first appointment was made in 1724. The term "Regius" reflects the origins of the post as a royal appointment, itself a recognition of the important influence of history.

The Regius Professor of History is ex officio a Fellow of Oriel College. Professor Lyndal Roper has held the Regius Professorship since 2011, the first woman (and the first Australian) to have done so.

Henry Chadwick KBE FBA (23 June 1920 – 17 June 2008) was a British academic, theologian and Church of England priest. A former dean of Christ Church Cathedral, Oxford – and as such, head of Christ Church, Oxford – he also served as master of Peterhouse, Cambridge.

A leading historian of the early church, Chadwick was appointed Regius Professor at both the universities of Oxford and Cambridge. He was a noted supporter of improved relations with the Catholic Church, and a leading member of the Anglican–Roman Catholic International Commission. An accomplished musician, having studied music to degree level, he took a leading part in the revision and updating of hymnals widely used within Anglicanism, chairing the board of the publisher Hymns Ancient & Modern Ltd. for 20 years.

Alberico Gentili (14 January 1552 – 19 June 1608) was an Italian jurist, a tutor of Queen Elizabeth I, and a standing advocate to the Spanish Embassy in London, who served as the Regius Professor of Civil Law at the University of Oxford for 21 years. He is regarded as the co-founder of the field of international law, and thus known as the "Father of international law". The first medieval writer on public international law, in 1587 Gentili became the first non-English person to be a Regius Professor. He also authored numerous books, which are recognized to be among the most essential sources for international legal doctrines, yet that also include theological and literary subjects.

The Regius Professor of Medicine is an appointment held at the University of Aberdeen, in Scotland and was formally founded in 1858 by Queen Victoria.

The University of Aberdeen, however, states that this professorship was founded in 1497 and is the oldest regius chair in the English speaking world. That claim is based upon the establishment at King's College, Aberdeen, at the end of the 15th century of a teaching post known as the "Mediciner". The first recorded Mediciner was John Cumyne, appointed before 1522, but the role lapsed between 1571 and 1619 and it is stated that there were no lectures between 1793 and 1838.