Click here to see our amended uniform policy (skirt lengths)

Welcome to our school

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Cantonian High School is an English-medium mixed 11-18 comprehensive school with a sixth form. There are currently approximately 550 pupils on roll; however, numbers are growing and it is the school’s intention to continue this growth over the coming years. Our school offers excellent standards of care for all, as well as high standards of academic, vocational and sporting attainment.

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Upcoming Events

  1. Year 7 Success Evening

    Thursday, 24th October 2019 @ 3:45 pm - 6:00 pm
  2. Autumn Half Term

    Monday, 28th October 2019 - Friday, 1st November 2019
  3. Year 9 Parents’ Evening

    Thursday, 28th November 2019 @ 4:00 pm - 6:00 pm
  4. Carol Service, Llandaff Cathedral

    Thursday, 12th December 2019 @ 7:00 pm
  5. Christmas Holidays

    23/12/2019 - 03/01/2020

Educating over 1000+ students

The best from each, success for all.

Latest News

Keep up to date with the latest school news.

Cantonian High School
09/10/2019

Additional INSET Day Monday 22 June 2020

Cantonian High School
01/10/2019

Update 1st October 2019

Cantonian High School
30/09/2019

Could you be a Parent Governor?

Cantonian High School
26/09/2019

Open Evening

Cantonian High School
25/09/2019

INSET Day Monday 30th September

Cantonian High School
17/09/2019

SNAP Parent Engagement Events

Cantonian High School
12/09/2019

Amended Uniform Reminder

Cantonian High School
22/08/2019

Best GCSE Results Ever!

Cantonian High School
15/08/2019

A Level Results Day

Cantonian High School
15/08/2019

Year 12 and 13 Results Day

Cantonian High School
14/03/2019

Google Classrooms link

Cantonian High School
05/03/2019

Estyn Inspection Week Beginning 25 March

Cantonian High School
04/02/2019

Public Consultation Meeting on New Build