International Baccalaureate (IB) Diploma Programme at ISB

The Origin of IB Diploma

At International School Bangkok (ISB), we proudly offer the International Baccalaureate (IB) Diploma Programme (DP), a globally respected academic pathway designed to provide students with a rigorous, well-rounded education.

What is the IB?

Originally developed in the 1960s by educators at the International School of Geneva, the IB Diploma Programme was created to promote academic excellence, cultural awareness, and international understanding. Today, our international school’sIB Programme prepares students in Bangkok for success at top universities worldwide by building critical thinking, research, and communication skills. Our experienced teachers and examiners from around the globe ensure that ISB students benefit from a truly international education experience.

"The International Baccalaureate (IB) is a global leader in international education—developing inquiring, knowledgeable, confident, and caring young people. Our programs empower school-aged students to take ownership in their own learning and help them develop future-ready skills to make a difference and thrive in a world that changes fast." —International Baccalaureate

Why Take the IB Diploma Programme at International School Bangkok?

Our IB school in Bangkok offers an ambitious curriculum with an international outlook. This two-year program is widely recognized as an excellent preparation for higher education in many countries around the world. The IB Diploma Programme allows students to become specialists in three subjects studied at Higher Level, while maintaining intellectual development in other areas at Standard Level.

To fulfill the IB Diploma Programme requirements, students must choose subjects from each of the six subject groups, which include the study of two languages and the IB Diploma Core, Extended Essay, Theory of Knowledge, and Creativity, Activity, Service. For most courses, students take written examinations at the end of the program. In many program areas, students complete externally assessed coursework. Components of the DP core require students to produce coursework, for example.

Some students opt to take our Personal Choice Diploma, which may include several IB Diploma courses. In this case, these students will receive individual IB certificates once they’re completed. Regardless of the ISB pathway chosen, all ISB graduates receive offers from a range of world-renowned colleges and universities that recognize the excellence and rigor of our programs of study. Our IB school’s diverse curriculum, exceptional teaching, and multiple opportunities for our students to develop their skills and attributes ensure that ISB graduates are well-prepared for future success in college and beyond.

What Part of the IB Programme is Offered at International School Bangkok?

At ISB, we offer the IB Diploma Programme (DP). Established in 1968, the International Baccalaureate® (IB) Diploma Programme (DP) is the first program offered by the IB and is taught to students aged 16-19. ISB was the first school in Thailand to offer the IB Diploma.

The International Baccalaureate (IB) offers an ambitious curriculum with an international outlook. Students can pursue either the full IB Diploma or individual IB Courses. Students enrolled in an IB Course complete the course over two years. Students are required to complete both coursework and exams at the end of the second year for the IB designation to be added to their transcript.

What is the IB Diploma Programme Curriculum?

IB Diploma Programme Model

Pathways to Higher Education and Employment

The International Baccalaureate® (IB) Diploma Programme (DP) is recognized and respected by the world’s leading universities, and evidence suggests that higher rates of DP students go on to university and higher education study than non-IB students. DP students worldwide apply to more than 3,300 higher education institutions yearly, in nearly 90 countries. The most popular institutions are ranked among the top universities in the world.

The IB recognition resource and document library has testimonials from universities working with DP students, and the IB organization's research pages look in detail at the performance of DP students, including comparisons with other students.

International School Bangkok’s Achievements in the IB Diploma

We are delighted to recognize the outstanding achievements of the Class of 2025 in the International Baccalaureate Diploma Programme (IBDP) exams. Our school’s IB students brought with them a wide range of talents, interests, and goals, and the IB programme provided a rigorous, globally recognized framework through which they challenged themselves and grew in pursuit of what matters most to them. This year, 95 students earned the IB Diploma, with a strong average score of 34 points, well above the global average of 30.58. In addition, 16% of students exceeded the remarkable threshold of earning 40 points or more, with a highest score of 44.

ISB is also proud that 34% of students earned the IB Bilingual Diploma, reflecting the cultural richness and linguistic capabilities within our community. Coursework was completed in eight languages: Chinese, English, French, Japanese, Korean, Spanish, Thai, and Dutch. This is an example of the many pathways our students take to success.

More information can be found on the IB website here

Why Families Choose ISB as an IB School in Bangkok

Families looking for an IB school in Thailand often choose ISB because students receive both rigorous academic preparation and meaningful personal support. At ISB, students benefit from personalized academic pathways, experienced IB educators, exceptional university counseling, and extensive arts, athletics, service, and leadership development opportunities.

As one of the most established IB schools in Bangkok, ISB helps students become confident learners ready to contribute meaningfully in universities and communities around the world. Contact our Admissions team to learn more.

ISB's IB Diploma Programme prepares students to navigate complexity, embrace diversity, and make meaningful contributions to the world. -International Baccalaureate Organization, www.ibo.org

High School Profile

High School Program

Advanced Placement (AP)

High School Handbook

ISB's The IB Diploma Programme prepares students to navigate complexity, embrace diversity, and make meaningful contributions to the world. -International Baccalaureate Organization, www.ibo.org

Frequently Asked Questions About ISB’s IB Diploma Programme

Q: What is the International Baccalaureate?

A: The International Baccalaureate (IB) is a globally recognized educational framework for students ages 3–19 that emphasizes critical thinking, research, academic rigor, and international-mindedness.

Q: What is the IB Diploma Programme at International School Bangkok?

A: ISB offers the full International Baccalaureate Diploma Programme in Thailand for Grades 11 and 12, including six subject groups plus the Core components: TOK, Extended Essay, and CAS.

Q: Is ISB a top IB international school in Bangkok?

A: Yes. ISB is widely recognized as one of the leading IB schools in Bangkok and was the first school in Thailand to offer the IB Diploma Programme.

Q: How does the IB Diploma differ from A-Levels?

A: The IB Diploma emphasizes breadth across multiple disciplines alongside research and service learning, while A-Levels typically focus on depth in fewer subjects.

Q: What are IB tuition fees at ISB?

A: Tuition and fee structures may vary by year and program options. Families are encouraged to contact the ISB Admissions Office directly for the latest information regarding fees and enrollment packages.

High School — International Baccalaureate Program (IB)