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Welcome!

St Vincent’s Castleknock College has 190 years experience of excellence in boys’ education. A Christian school in the Catholic tradition, we place faith, respect for fellow students and for teachers, care for the poor and vulnerable, and growth of self-worth through active participation as central to the school’s spirit and ethos. In recent years, the college has been ranked joint first in the list of the best schools in Ireland with 100% of our graduates going on to third level education. This is all down to enthusiastic teachers, hardworking students and supportive parents.

Please enjoy the video below and links within the website to learn more about our College. Details on Admissions may be found through the Parents tab [here].

Admissions 2026

Admissions into all year groups for 2026 have now closed. Further applications will not be accepted as we are oversubscribed.

Admissions 2027

Open Day 2026: Wednesday 16th September

St. Vincent’s Castleknock College is delighted to invite 2026 Sixth Class boys and their Parent(s) / Guardian(s) to the Open Day. This event is fully booked.

Admission Process 2027

The College’s Admissions Policy and Guidelines for Admission Application Process are available on the Admissions tab, and should be reviewed prior to completing the Online Application Form(s).

Online Application Form(s) for the First Year Group 2027 will be accepted during the admission window commencing 01/10/2026 at 09:01 and closing at 15:00 on 22/10/2026.

An application received after this time/date will be classified as a late application and will be processed in accordance with the College’s Admissions Policy.

Applications to other year groups will be available from the end of February 2027 and details will be published closer to this time.