Endeavour to Excel, Strength in Service
We are committed to nurturing excellence and character, empowering young men to strive for success and lead through service.
We foster a strong academic culture through holistic, values-based education that equips students for modern learning and future success.
Our school offers a safe, structured, and student-centered environment that promotes focus, growth, and confidence.
We believe in shaping our students for a successful future beyond academics.

Academic Excellence
School Life & Community
Co-Curricular Activities
Technology-Driven Learning
Who we are
Inspiring Minds, Shaping Leaders
At Masii Boys High School, we are proud to be a Centre of Excellence in quality education and service, where young men are empowered through holistic learning grounded in strong Christian values. Guided by our motto, “Endeavour to Excel,” we nurture learners who are not only academically strong but also morally upright, socially responsible, and globally competent.
As an Extra-County School located in Masii Town, within Mwala Sub-County, Machakos County, we provide a safe and supportive learning environment, a team of dedicated staff, and diverse co-curricular programs that foster well-rounded development.
Our SCHOOL MOTTO
Endeavour to Excel
To be a Centre of Excellence in relevant quality education and strong in Service.
To train and equip learners with the necessary knowledge, skills, and attitudes to achieve personal goals, embrace social responsibility, and attain self-actualization.
Student-Centered Learning
Masii Boys High School features departments that cater to the diverse interests and talents of our students. Our diverse range of departments ensures a comprehensive education that fosters academic excellence, personal growth, and lifelong learning.
LEARN ABOUT MASII BOYS HIGH SCHOOL
Empowering Every Step Toward a Brighter Future
At Masii Boys High School, we empower students through holistic education, mentorship, and values-based guidance—preparing them to face the future with confidence, purpose, and resilience.
We provide a safe, inclusive, and nurturing learning environment where every student is valued, respected, and empowered to grow both academically and personally.
Our school values the personal development of each student, offering guidance programs on mental health, self-discipline, and emotional well-being.
We nurture leadership through student councils, mentorship, and training, equipping students with decision-making, teamwork, and problem-solving skills.

Inspiring Minds, Shaping Leaders
Why Choose Us
Discover Why Our School is Your Gateway to Success.
Our school provides a dynamic learning environment that fosters academic excellence, innovation, and personal growth. With state-of-the-art facilities, a diverse community, and comprehensive support services, we prepare students for a successful future.
A strong curriculum, expert faculty, and a commitment to student success.
Modern classrooms, labs, and technology-driven learning spaces.
An inclusive environment that fosters collaboration and cultural understanding.
Our dedicated programs and mentorship opportunities help students navigate their career paths with confidence.
As an Extra-County School, we welcome students from across Kenya, fostering diversity and national cohesion.
We provide personalized support to nurture every student's academic, emotional, and spiritual development.
School departments
Empowering Education, Inspiring Greatness.
Masii Boys High School features departments that cater to the diverse interests and talents of our students. Our diverse range of departments ensures a comprehensive education that fosters academic excellence, personal growth, and lifelong learning.

A student-centered learning environment that fosters academic and personal growth.

Well-equipped modern science laboratories for hands-on scientific exploration.

Nurturing leadership skills through mentorship programs, student councils, and service opportunities that build confidence and responsibility.



Our Value
Endeavour to Excel
Our mission is to train and equip learners with the necessary knowledge, skills, and attitudes to achieve personal goals, embrace social responsibility, and attain self-actualization.
Our vision at is to be a Centre of Excellence in relevant quality education and strong in Service.

Message from CHIEF principal
Empowering Students for the Future
Welcome to Masii Boys High School — a Centre of Excellence in education, character, and service.
At Masii Boys, we are deeply committed to nurturing well-rounded young men through quality academics, strong Christian values, and holistic development. Guided by our motto “Endeavour to Excel,” we strive to empower our learners to reach their full potential and lead with purpose.
Our dedicated team of teachers and staff provides personalized support to nurture each student’s academic, emotional, and spiritual growth. As an Extra-County school, we proudly welcome students from across Kenya and remain committed to fostering diversity, national unity, and preparing future-ready leaders.

Education for the Future
We inspire the full potential of our students by fostering a secure and supportive environment where they can explore multiple opportunities for academic and personal growth.
University / College Opportunities





