Choosing IB subjects can feel overwhelming, especially when everyone around you seems to be picking the same options. Each year, IB publishes global statistics that reveal clear trends in subject popularity — and 2025 is no different.
Understanding which IB subjects are most popular helps students make smarter, more informed decisions. But popularity alone should never decide your subject choices. In this article, we break down the most popular IB subjects in 2025, explain why they attract so many students, and show how to use this information strategically rather than emotionally.
Quick Start Checklist: What This Article Covers
- Which IB subjects were most popular in 2025
- Why these subjects consistently dominate student choices
- Whether popular subjects are harder to score well in
- How to think strategically about subject popularity
- Why RevisionDojo supports success in every IB subject
What Are the Most Popular IB Subjects in 2025?
Based on global IB Diploma data from the May 2025 session, the most popular IB subjects continue to fall into familiar categories. These subjects attract the largest number of students worldwide:
- English A (all routes combined)
- History
- Business Management
- Psychology
- Biology
These subjects consistently rank at the top because they are widely offered by schools, accessible to students with diverse strengths, and aligned with university expectations across many countries.
Popularity does not mean “easy,” but it does mean these subjects appeal to a broad range of students.
Why English A Is Always the Most Popular IB Subject
English A remains the single most popular IB subject globally. This is largely because it is a mandatory requirement for most diploma students. Almost every IB student must take at least one Language A course, and English is the most common first language of instruction worldwide.
