The High School, Dublin

The High School is a 12–18 mixed, Church of Ireland, independent secondary school in Rathgar, Dublin, Ireland.

It was established in 1870 at Harcourt Street before moving to Rathgar in 1971. It amalgamated with The Diocesan School for Girls in 1974, becoming co-educational. The school offers a range of sports including badminton, cricket, cross country, hockey, rugby and tennis. In 2009, it was noted as the school with the highest rate of progression to third-level education.

It is owned and overseen by the Erasmus Smith Trust.

Notable alumni

 * Lenny Abrahamson, film director and screenwriter
 * Ernest Alton, university professor, independent Teachta Dála and Senator
 * Nicola Daly, hockey player
 * Charles D'Arcy, bishop
 * John Duggan, bishop
 * Jonathan Garth, cricketer
 * C. G. Grey, editor and writer
 * Howard Kilroy, accountant and businessman
 * F. S. L. Lyons, historian and academic
 * William Kirkpatrick Magee, author, editor, and librarian
 * Brian McCracken, judge
 * Roly Meates, former Ireland national rugby union team coach
 * Alison Meeke, hockey player
 * Greg Molins, cricketer
 * Jason Molins, cricketer
 * J. Alec Motyer, biblical scholar
 * Annalise Murphy, sailor
 * William Noblett, priest and author
 * David Norris, scholar, independent Senator and civil rights activist
 * Denis O'Brien, businessman
 * Shane O'Donoghue, field hockey player
 * Caoimhín Ó Raghallaigh, fiddler
 * Philip Orr BIL, rugby union player
 * John Robbie BIL, rugby union player
 * Trevor Sargent, politician and priest
 * Alan Shatter, politician
 * Roland Shortt, cricketer
 * John Thorpe, priest
 * William Thrift, university professor and independent Teachta Dála
 * Jack Butler Yeats, artist and Olympic medallist
 * William Butler Yeats, poet and dramatist