Best secondary schools in Ottawa (2025)

Secondary (high) schools and combined schools. Ranked by the Success Index (Canada) from official Canadian data; 22 schools in Ottawa, Ontario. Rank positions shown on each profile are within Canada and Ontario.

1
94
École secondaire catholique Paul-DesmaraisOttawa · Catholic Secondary99% OSSLT pass rate · 880 students
2
83
Nepean High SchoolOttawa · Public Secondary94% OSSLT pass rate · 1,270 students
3
79
Canterbury High SchoolOttawa · Public Secondary94% OSSLT pass rate · 1,160 students
4
79
Glebe Collegiate InstituteOttawa · Public Secondary93% OSSLT pass rate · 1,315 students
5
70
École secondaire publique De La SalleOttawa · Public Secondary93% OSSLT pass rate · 950 students
6
70
Lisgar Collegiate InstituteOttawa · Public Secondary91% OSSLT pass rate · 960 students
7
62
École secondaire catholique Samuel-GenestOttawa · Catholic Secondary96% OSSLT pass rate · 855 students
8
54
École secondaire catholique Franco-CitéOttawa · Catholic Secondary92% OSSLT pass rate · 1,010 students
9
44
St Paul High SchoolOttawa · Catholic Secondary87% OSSLT pass rate · 700 students
10
42
Immaculata High SchoolOttawa · Catholic Secondary87% OSSLT pass rate · 855 students
11
41
École secondaire catholique de l’innovationOttawa · Catholic Secondary71% OSSLT pass rate · 95 students
12
37
St Pius X High SchoolOttawa · Catholic Secondary84% OSSLT pass rate · 890 students
13
34
Notre Dame High SchoolOttawa · Catholic Secondary83% OSSLT pass rate · 430 students
14
27
École secondaire publique Omer-DeslauriersOttawa · Public Secondary88% OSSLT pass rate · 325 students
15
26
Hillcrest High SchoolOttawa · Public Secondary83% OSSLT pass rate · 460 students
16
26
Woodroffe High SchoolOttawa · Public Secondary81% OSSLT pass rate · 900 students
17
19
St Nicholas Adult High SchoolOttawa · Catholic Secondary620 Enrolment · 620 students
18
17
Brookfield High SchoolOttawa · Public Secondary79% OSSLT pass rate · 650 students
19
14
St Patrick's High SchoolOttawa · Catholic Secondary75% OSSLT pass rate · 1,110 students
20
10
Ottawa Technical Secondary SchoolOttawa · Public Secondary48% OSSLT pass rate · 330 students
21
8
École secondaire publique L'AlternativeOttawa · Public Secondary70 Enrolment · 70 students
22
5
Ridgemont High SchoolOttawa · Public Secondary62% OSSLT pass rate · 860 students

#	School	Sector	Success Index (Canada)	Key result	Students
1	École secondaire catholique Paul-Desmarais Ottawa · Secondary · Grades 9-12	Catholic	94.4 Top 5%	99% OSSLT pass rate	880
2	Nepean High School Ottawa · Secondary · Grades 9-12	Public	82.9 Top 10%	94% OSSLT pass rate	1,270
3	Canterbury High School Ottawa · Secondary · Grades 9-12	Public	79.3 Top 25%	94% OSSLT pass rate	1,160
4	Glebe Collegiate Institute Ottawa · Secondary · Grades 9-12	Public	78.9 Top 25%	93% OSSLT pass rate	1,315
5	École secondaire publique De La Salle Ottawa · Secondary · Grades 9-12	Public	70.3 Top 25%	93% OSSLT pass rate	950
6	Lisgar Collegiate Institute Ottawa · Secondary · Grades 9-12	Public	69.6 Top 25%	91% OSSLT pass rate	960
7	École secondaire catholique Samuel-Genest Ottawa · Secondary · Grades 9-12	Catholic	61.8 Top 50%	96% OSSLT pass rate	855
8	École secondaire catholique Franco-Cité Ottawa · Secondary · Grades 9-12	Catholic	53.7 Top 50%	92% OSSLT pass rate	1,010
9	St Paul High School Ottawa · Secondary · Grades 9-12	Catholic	44.2 Lower 50%	87% OSSLT pass rate	700
10	Immaculata High School Ottawa · Secondary · Grades 9-12	Catholic	42.3 Lower 50%	87% OSSLT pass rate	855
11	École secondaire catholique de l’innovation Ottawa · Secondary · Grades 9-12	Catholic	41.2 Lower 50%	71% OSSLT pass rate	95
12	St Pius X High School Ottawa · Secondary · Grades 9-12	Catholic	37.3 Lower 50%	84% OSSLT pass rate	890
13	Notre Dame High School Ottawa · Secondary · Grades 9-12	Catholic	33.9 Lower 50%	83% OSSLT pass rate	430
14	École secondaire publique Omer-Deslauriers Ottawa · Secondary · Grades 9-12	Public	27.1 Lower 50%	88% OSSLT pass rate	325
15	Hillcrest High School Ottawa · Secondary · Grades 9-12	Public	25.9 Lower 50%	83% OSSLT pass rate	460
16	Woodroffe High School Ottawa · Secondary · Grades 9-12	Public	25.8 Lower 50%	81% OSSLT pass rate	900
17	St Nicholas Adult High School Ottawa · Secondary · Grades 9-12	Catholic	18.6 Lower 50%	620 Enrolment	620
18	Brookfield High School Ottawa · Secondary · Grades 9-12	Public	16.5 Lower 50%	79% OSSLT pass rate	650
19	St Patrick's High School Ottawa · Secondary · Grades 9-12	Catholic	14.2 Lower 50%	75% OSSLT pass rate	1,110
20	Ottawa Technical Secondary School Ottawa · Secondary · Grades 9-12	Public	10.0 Lower 50%	48% OSSLT pass rate	330
21	École secondaire publique L'Alternative Ottawa · Secondary · Grades 9-12	Public	8.1 Lower 50%	70 Enrolment	70
22	Ridgemont High School Ottawa · Secondary · Grades 9-12	Public	4.6 Lower 50%	62% OSSLT pass rate	860

École secondaire catholique Paul-Desmarais in Ottawa leads the 2025 list of secondary schools in Ottawa with a Success Index (Canada) of 94.4. Of the 22 schools shown, 12 are public, 10 are catholic.

For the full picture see the wider Ontario secondary schools rankings, every school on the Ottawa page, or the comparison tool to put a shortlist side by side.

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Frequently asked questions

What is the best secondary school in Ottawa?

École secondaire catholique Paul-Desmarais in Ottawa, Ontario ranks first among secondary schools in Ottawa with a Success Index (Canada) of 94.4 out of 100 (Enrolment: 880).

How are secondary schools in Ottawa ranked?

Each school's Success Index (Canada) combines 8 factors: eqao grade 3 (reading, writing, maths) (20%), eqao grade 6 (reading, writing, maths) (25%), eqao grade 9 mathematics (25%), osslt first-attempt pass rate (20%), fsa literacy score (25%), fsa numeracy score (25%), community advantage (fewer low-income households) (10%), parent education (fewer parents without a credential) (10%). Each factor is a percentile against schools of the same type across Canada. Schools with fewer than 60 students are excluded from rankings.

Are these 2025 rankings official?

No. They are computed by Success Tutoring from official Canadian data (Ontario – School information and student demographics; BC Data Catalogue – Foundation Skills Assessment). Provinces publish different assessments, so scores are comparable within a province, not between provinces.