Academic dress prescribed at the Trinity College Dublin follows a relatively complex protocol which, nonetheless, shares some particular characteristics with other universities in Ireland and with the University of Oxford in the United Kingdom.

Occasions when worn

The 1966 consolidated statutes of the university and the college stated, "The Provost, and every Fellow, professor, other Academic Officer, scholar, and other Student shall have a cap and gown, and shall wear them while performing their Academic duties"; the precise significance of "Academic duties" was not made explicit. As late as the 1960s, gowns were still commonly worn for some lectures and examinations, but in practice the wearing of academic dress is now confined to graduation ceremonies and other formal occasions. Some student societies, such as the College Historical Society and the University Philosophical Society, officially require academic dress at their meetings, but this postulation is never now observed.

Academic dress of the University of Dublin

Components

After the names of the components, the Groves Classification Number is given in square brackets.

Academic dress of the University of Dublin

For full academic dress at special occasions, the prescribed clothing for men with degrees is a dinner jacket, worn with dark trousers, a white shirt, white or black bow tie, black socks and black shoes - in other words, following the black tie dress code. (The option to wear a white bow tie is a vestige of previous decades where full white tie formal dress was required for all men at degree ceremonies). Men with diplomas or certificates wear a dark suit instead of a dinner jacket. Women are required to wear formal clothing in black, white, or a combination of both. Members of the military are exempted from these requirements and may wear service dress uniform; similarly, members of the clergy may wear black or white clerical clothing with a shirt in black or grey.

Academic dress of the University of Dublin

Gowns

Gowns are open-fronted, like those generally used throughout Ireland and the United Kingdom, but not the United States, and they are largely similar in shape to those of the University of Oxford. The main types seen are the bachelors' and masters' gowns. In addition, for certain formal occasions, Doctors wear special dress gowns, distinguished by the use of scarlet; the sleeves and facings of these are adorned in some cases with various patterns that indicate the exact degree or degrees that they possess, allowing this to be determined even when hoods are not being worn.

Undergraduates

Commoners (i.e. those not otherwise classified, including Pensioners (those who pay fees)) wear a gown that is now very rarely seen. It consists of a short, sleeveless gown [u8] made of black shtuff stuff with a flap collar. It is similar in shape to the Oxford Advanced Students' gown [u5], but it reaches down as far as the knees, and the "streamers" over the arm are wider and reach only as far as the elbow. It has distinctive decoration: three rows of tassels are found on the flap above each armhole, with another three rows below, and a nine-inch slit upwards from the back midline hem. The streamers may be considered the remnants of closed sleeves, as can still be seen on the laced gowns of the higher faculties.

Scholars (both those on the Foundation and non-Foundation) wear the same gown as bachelors.

Fellow Commoners / Nobles; these were historically enrolled in a special, shorter, intensive course (three years as opposed to four, as they did not want to neglect their estates for too long) and had a particular gown. This was embellished with gold tassels, etc.

Sizars/ Exhibitioners: A Sizar was a poor student, the son of poor parents, often of clergy. From the writings of William Howitt about Goldsmith, 1847 – "The sizer wears a black gown of coarse stuff without sleeves, a plain black cloth cap without a tassel, and dines at the fellows' table after they have retired. It was at that period far worse; they wore red caps to distinguish them, and were compelled to perform derogatory offices; to sweep the courts in the morning, carry up the dishes from the kitchen to the fellows' table, and wait in the hall till they had dined." A distinct gown for Sizars/ Exhibitioners is no longer worn, and they currently wear the Commoners gown, when required or desired.

In addition to undergraduate use, the undergraduate gown is worn as the prescribed academic dress for the conferral of undergraduate diplomas, with an epitoge.

Bachelors

These wear a clerical-type gown [b10] of black Irish Russell cord, in the Oxford BA shape [b1] but with shorter sleeves. It has no collar, but instead has the voluminous material of its back and the open bell-shaped sleeves gathered into a yoke.