Maseno old boys association is a registered association with the registrar of societies. It's a grouping of old boys who went to Maseno school at different times brought together by a common heritage. The association exists to give back to the school and also to bond and reconnect amongst the old boys and to promote each other's welfare.

Through events, initiatives, and collaborative projects, members strengthen their network while giving back to the community that shaped them. The association also preserves the legacy and traditions of the school, ensuring that the spirit of brotherhood continues across generations of alumni.