When students choose IB subjects, popularity often plays a major role. While some subjects attract huge global cohorts, others are taken by far fewer students each year. This naturally leads to an important question: are least popular IB subjects risky choices?
The short answer is no — but the full answer is more nuanced.
This article breaks down which IB subjects were least popular in 2025, why enrolment is lower, and how students should think about subject popularity when making smart, strategic decisions.
Quick Start Checklist
- Which IB subjects had the lowest enrolment in 2025
- Why some subjects attract fewer students
- Common myths about “hard” IB subjects
- When choosing a less popular subject makes sense
- How RevisionDojo supports niche IB subjects
What Are the Least Popular IB Subjects in 2025?
While exact enrolment numbers vary by region, the least popular IB subjects globally tend to include:
- Physics (especially at Higher Level)
- Higher Level Mathematics courses
- Certain Group 6 Arts subjects
- Niche language options with small cohorts
These subjects are offered by fewer schools, require stronger prerequisites, or appeal to more specific interests — all of which reduce enrolment.
Low popularity does not mean low quality or poor outcomes.
Why Do Some IB Subjects Have Low Enrolment?
There are several practical reasons why some IB subjects attract fewer students.
First, availability matters. Not every school offers Physics HL, advanced Maths options, or a full range of Arts subjects due to staffing or timetable constraints.
Second, perceived difficulty plays a role. Subjects involving heavy mathematical reasoning or abstract concepts often intimidate students, even if they are capable.
