Expert Faculty
Guided by a team of expert faculty, our students receive the knowledge and mentorship they need to excel.
About
Our Story
Educating Minds, Inspiring Hearts
Oloolaiser Boys high school is a Boys boarding school, located in Ngong location, Kajiado County, about 26 Km from the city center. Oloolaiser in a National Boys Boarding school admitting boys of ages 12 – 19 years. We offer the Kenya Secondary Certificate of Education (KCSE) upon completion of a 4-year course. The Examination is administered by the Kenya National Examination Council (KNEC), a National examining body. The school was founded in 1967 and opened by the first president of Kenya Jomo Kenyatta as a harambee day mixed school. The school has currently grown to be four streamed boys only school. The school has a total acreage of 38 with a population of 784 students and 39 faculty. The school enjoys a high reputation for its success in sports and games. Within the curriculum there are three sports and games sessions a week and all students are expected to take part.
1967
Oloolaiser High School was established in 1967, originally as a harambee day mixed secondary school serving the local community.
Early 1970s
Official opening by President Jomo Kenyatta. The school was officially opened in the early 1970s by Kenya’s first president, Mzee Jomo Kenyatta.
1970s–2000s
Transition into a boys’ national boarding school. Over the following decades Oloolaiser evolved from its harambee/day origins into a full boys-only national boarding school.
2016
Oloolaiser was officially recognized as a national high school.
2026
Preparing to implement the Competency-Based Education (CBE) senior phase.
School Anthem
Lyrics & tune by Pasomi Mucha
Oloolaiser, Oloolaiser,The high school of my choice,
Oloolaiser, Oloolaiser,
We are great, we’re growing greater!
- Our wisdom begins from the fear of God, With God at the helm we are on the right track, Forward we march, education is for service, In the high school of my choice.
- We are working smart, raising talents and skills, Holistic development as boys become men, Working with efficiency to reach our goals, In the high school of my choice.
- Excellence, character, teamwork, integrity, These are values that guide us every day, We’re a brotherhood, no matter where we come from, In the high school of my choice.
Core Values
God Fearing
Living with reverence, integrity, and humility, guided by faith to make righteous decisions and treat others with respect.
Academic Excellence
Striving for the highest standards of learning, discipline, and achievement, while fostering a culture of curiosity and hard work.
Nurturing Talents
Recognizing individual potential and supporting growth to help students maximize their abilities and achieve excellence.
Teamwork
Working together with respect, trust, and unity to achieve common goals, while recognizing each other’s unique strengths.
56+
Years of Educational Excellence
Administration & Leadership
Inspiring Leaders Shaping Tomorrow's Generation
Our administration and faculty stand as pillars of dedication, vision, and service.
Academic Excellence
Striving for academic excellence, we empower students to achieve their highest potential and beyond.
Our Team
Meet Our Leadership
Our leadership team is dedicated to guiding students, teachers, and the entire school community toward excellence.
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Mr Sammy Maina Bundi
Deputy Principal, Administration
Mr Sammy Maina Bundi
Deputy Principal, Administration
We believe every student has the potential to excel. Our role is to guide, mentor, and provide the environment where learners can discover their strengths.
Mr Martin Ndirangu
Deputy Principal, Academics
Mr Martin Ndirangu
Deputy Principal, Academics
Academic excellence is at the heart of Oloolaiser High School. We are committed to nurturing critical thinkers and lifelong learners.
Mr Siebert Mainga
Boarding Master
Mr Siebert Mainga
Boarding Master
Boarding life is more than accommodation — it is a home away from home where students learn responsibility and develop good habits.
Ms Pasomi Mucha
Director of Studies
Ms Pasomi Mucha
Director of Studies
Our focus is on guiding students to reach their highest academic potential through effective teaching and consistent monitoring.
Mr Thomas Kimani
HOD, Languages
Mr Thomas Kimani
HOD, Languages
Language is the key to expression. We empower students to master communication skills that build confidence and broaden perspectives.
Mrs Margaret Kirui
HOD, Mathematics
Mrs Margaret Kirui
HOD, Mathematics
Mathematics is the foundation of logical thinking. We inspire learners to approach challenges with curiosity and precision.
Madam Jane Maina
HOD, Sciences
Madam Jane Maina
HOD, Sciences
Science opens the door to discovery and innovation. We encourage students to explore, experiment, and question the world.
Madam Metrine Lugose
HOD, Humanities
Madam Metrine Lugose
HOD, Humanities
Humanities help us understand society and human values. We guide students to think critically and appreciate diversity.
Madam Esther Okioga
HOD, Technicals
Madam Esther Okioga
HOD, Technicals
Technical subjects equip learners with hands-on skills, preparing them for both higher learning and the world of work.
Mrs Florence Theuri
HOD, Guidance & Counselling
Mrs Florence Theuri
HOD, Guidance & Counselling
We provide a safe space where learners can be empowered to make positive choices for their personal growth.