Six of Ireland’s top universities have fallen significantly in the QS World University Rankings for 2022.

QS’s overall rankings are based on factors such as academic and employer reputation, the ratio of staff to students, citations per faculty and more.

According to the data, the drop in Irish universities’ ranking is down to a decline in teaching capacity, as student numbers rise but the amount of staffing remains the same.

Additionally, research performance appears to have declined, which has led to a fall in the ranking tables.

According to the latest ranking, NUI Galway has fallen 20 places and now ranks 258th in the world, putting it outside the top 250 range it previously occupied.

University College Cork (UCC) fell 12 places to 298th place.

Dublin City University (DCU) fell 51 places to 490th, and Queen’s University Belfast is now down 7 places to 216.

Both Maynooth University and Ulster University have fallen into the 751-800 tier, where it had previously occupied the 701-750 range.

Trinity College, however, has retained its place at 101 in the world, while UCD has moved up 4 places to 173.

University of Limerick has moved up to the 501-510 range, where previously it occupied the 511-520 ranking. Technological University Dublin’s ranking has remained unchanged at 810-1000.