St Andrew's College Dublin (Irish: Coláiste Naomh Aindriú) is a co-educational, inter-denominational, international Private day school, founded in 1894 by members of the Presbyterian community, and now located in Booterstown, Dún Laoghaire–Rathdown, Ireland.

Founded as a boys' secondary school at the end of the 19th century by members of the Presbyterian community, St Andrew's College celebrated its centenary in 1994.

[3] At the beginning of 1937 a move to new premises in Wellington Place, Clyde Road, along with a determined effort by past pupils and parents to stave off closure or amalgamation saw a revival in the fortunes of the College.

[6][7] St Andrew's is one of three schools in Ireland to offer the International Baccalaureate (IB) Diploma Programme.

They also have had immense success in the All Ireland Schoolboys' Hockey Championship, having won the tournament 7 times, most recently in 2017.