the 2023/24 academic year, the total student population was 24,915, of whom 18,310 were undergraduates and 6,605 postgraduates. In the 2016–17 academic year, the university had a domicile breakdown of 87:4:9 of UK:EU:non-EU students respectively with a female to male ratio of 56:44. There was also a total student population of 2,250 at its St Mary's and Stranmillis university colleges as of 2013/2014.
The university was established with the aim of attracting both Protestant and Catholic students. While the university does not publish data on the religion affiliation of its students, Rupert Taylor, who conducted his PhD research on the university during The Troubles, argued in an article published in 1988 that "Whilst in the past, especially before the Second World War, Catholics were under-represented this is not currently the case". Taylor cites data showing that Catholic representation among undergraduates rose from 21.9 per cent in 1958/59 to 27.4 per cent in 1968/69 and 42.5 per cent in 1978/79. By the late 1990s, 54 per cent of Queen's students were Catholics, compared to a 48 per cent share of the Northern Ireland population aged 18–25. The growing share of Catholics in the student population is partially due to the tendency of middle-class Protestants to attend university in Great Britain rather than in Northern Ireland.
In 2009, Queen's signed a joint venture partnership with INTO University Partnerships, creating INTO Queen's University Belfast. The INTO centre is based on campus and provides a foundation year for international students who want to study at the university.
== Student life ==
=== Students' Union ===
The Students' Union at Queen's (QUBSU) is located opposite the Lanyon Building on University Road, and is provided for under the university's statutes. All students at the university are automatic members of the union, making it one of the largest unions on a single campus in Ireland and the UK. It is administered by the Students' Representative Council (SRC) (elected every October, on a …