2027 Applications Open — contact the school to arrange an appointment · AGM — 7 November, 09:00 — all parents urged to attend · Family Fun Day — 31 October — buy your tickets from the school · Prize Giving — 28 & 29 November · 2027 Applications Open — contact the school to arrange an appointment · AGM — 7 November, 09:00 — all parents urged to attend · Family Fun Day — 31 October — buy your tickets from the school · Prize Giving — 28 & 29 November ·
Girls learning
1918
Est. 1918 · Observatory, Johannesburg

Where Every
Girl Finds Her
Voice.

A small, nurturing public primary school for girls in Observatory, Johannesburg — welcoming girls from every background since 1918, and helping each one grow in confidence from Grade R to Grade 7.

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"A girls-only school isn't a limitation —
it's a superpower."

Research consistently shows girls in single-sex schools outperform their peers in confidence, STEM subjects, and leadership roles.

Classroom
Girls studying
Since
1918

Who We Are

A small school where
diversity is our strength

For over a century, Observatory Girls' Primary School has served families in Observatory, Johannesburg — one of very few public schools in South Africa dedicated to girls' primary education. We are small by design: stable, nurturing, and focused on knowing every girl.

Our motto — "Quality in Diversity" — is a promise we live every day. Girls from every walk of life walk through our gates and discover a community where difference is celebrated and excellence is expected.

Academic Excellence
Consistently strong results across all grades and phases
Arts & Culture
Music, drama and visual arts woven into daily school life
Sport & Wellness
Active, healthy bodies build confident, resilient minds
Quality in Diversity
Our motto, lived every day — confident girls from every background
Read our full story →

Life at OGS

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Reading time
Sports day
Library
Class activity
Science lesson
100
100+
Years of education
Serving Johannesburg since 1918
8
Grades
Grade R through to Grade 7
Girls
A school for girls
Single-sex and public
Diverse
By design
Girls from every background, welcomed

Latest from school

News & Events

Annual General Meeting — 7 November
Announcements

Annual General Meeting — 7 November

Our AGM takes place on Saturday 7 November at 09:00. All parents are invited, and attendance really matters — this is where decisions about our school are made.

Read more →
Prize Giving — 28 & 29 November
Events

Prize Giving — 28 & 29 November

Our end-of-year Prize Giving takes place on 28 November (Foundation Phase) and 29 November (Intersen Phase). The parents of prize recipients will be invited directly.

Family Fun Day — Saturday 31 October
Events

Family Fun Day — Saturday 31 October

A day of fun for the whole family on Saturday 31 October — foot races, a netball match, food stalls and more. Buy your tickets from the school ahead of the day and save.

Admissions for 2027 Are Open
Announcements

Admissions for 2027 Are Open

Applications for the 2027 academic year are open until the end of November. There is no online form for Grade R or Grades 2–7 — simply contact the school to arrange an appointment. Grade 1 applications are made online through the GDE.

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Admissions 2027

Give your daughter
the best start.

Applications for the 2027 academic year are open until the end of November. We accept girls from Grade R to Grade 7. There's no online form — contact the school to arrange an appointment. (Grade 1 is applied for online via the GDE.)

01
Contact the School
Arrange an appointment for Gr R or Gr 2–7
02
Grade 1 Is Online
Apply via the GDE admissions system
03
Meet With Us
We cover fees, uniform, stationery and placement
Contact the School → How to Enrol

The Research Is Clear

Why a girls-only
school makes a
difference.

Girls in single-sex schools consistently outperform their co-ed peers across key indicators — not because boys hold girls back, but because an environment built entirely around girls' needs, confidence, and growth allows them to thrive without limits.

Learn about our school →
Higher Confidence
Girls report significantly higher self-esteem and academic confidence in girls-only environments.
STEM Performance
Girls outperform in Mathematics and Science when taught in a single-sex setting.
Leadership Roles
Girls in single-sex schools are far more likely to take on leadership positions.
Stronger Voice
Without social pressures of mixed classrooms, every girl finds and uses her voice.
"
We don't just teach girls — we raise them to be leaders.
Makoditlane Tjeane
Principal, Observatory Girls' Primary School

Life at OGS

Gallery

Sports Day
Events
Sports Day 2025
24 photos
Concert
Year-End Concert
18 photos · 2025
Science Fair
Science Fair
12 photos · 2025
Farewell
Grade 7 Farewell
30 photos · 2024
+12
More Albums
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