Our school has been an IB World School since January 1983.  We offer the IB Diploma Programme. The IBDP (International Baccalaureate Diploma Program) Coordinator of the school is Mr Francis Kimweli. Mr Kimweli has been with the school since 1991.His 19 years of experience working in the IB Diploma course makes him one of the most experienced IB Teachers in the region. As a forerunner in the program he has watched the school and especially the IB Diploma Program grow in leaps and bounds.
The St.Mary’s IB Diploma programme is taught in English. We admit both girls and boys. Students at our school usually take IB exams in November.

In the next  examination session, our  students  will complete the following exams: Biology HL, Biology SL, Chemistry HL, Chemistry SL, Economics HL, Economics SL, English A1 HL, English A1 SL, French B HL, French B SL, History HL, History SL, , Information Technology in Global Society HL, Information Technology in Global Society SL, Kiswahili B HL,Kiswahili B SL, Math Studies SL, Mathematics HL, Mathematics SL, Text and Performance  SL, Physics HL, Physics SL, Theory  of Knowledge TOK,Theatre Arts HL Visual Arts HL and Visual Arts SL.