# Balkan Mathematical Olympiad (BMO)

An annual regional math Olympiad for high school students from Balkan and invited countries, featuring challenging proof-based problems.

## Key facts

| Field | Value |
| --- | --- |
| Organization | Mathematical Society of South Eastern Europe (MASSEE) |
| Category | stem |
| Cost | Free |
| Deadline | 2027-05-03 |
| Eligibility | Grades 9–12 |
| Format | In person |
| Location | Check official site |
| Apply | http://www.massee-org.eu/index.php/activities/balkan-mathematical-olympiad |

## About this program

The **Balkan Mathematical Olympiad (BMO)** is an annual regional mathematics competition for high school students from countries in the Balkan region, with additional invited guest countries. Established in 1984, the BMO features a 4.5‑hour written exam with challenging, proof‑based problems in areas such as algebra, geometry, number theory, and combinatorics, similar in style to the International Mathematical Olympiad.

Participation is **not individual sign‑up**: students are selected and sent by their own country’s national math olympiad organization or mathematical society, typically based on performance in national Olympiads or selection tests. A standard team consists of up to six students, usually in upper secondary school (roughly grades 9–12). The BMO offers a rigorous international contest experience, exposure to high‑level problem solving, and preparation for other major Olympiads, making it a key stepping stone for aspiring competition mathematicians in the region.

## Frequently asked questions

### How much does Balkan Mathematical Olympiad (BMO) cost?

Balkan Mathematical Olympiad (BMO) is completely free — there is no participation fee. Costs like travel or optional materials may still apply; check the official site for details.

### What is the application deadline for Balkan Mathematical Olympiad (BMO)?

The application deadline is May 3, 2027. Always confirm on the program's official site, as dates can shift between cycles.

### Who is eligible for Balkan Mathematical Olympiad (BMO)?

Balkan Mathematical Olympiad (BMO) is open to high school students in grades 9–12. Some programs have additional requirements (GPA, coursework, essays, or recommendations) — the full criteria are on the official site.

### Is Balkan Mathematical Olympiad (BMO) online or in person?

Balkan Mathematical Olympiad (BMO) is an in-person program.

### How do I apply to Balkan Mathematical Olympiad (BMO)?

Apply directly through Mathematical Society of South Eastern Europe (MASSEE)'s official website. ExtracurricularHub links to the official application — we list and verify programs but don't process applications.

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Last updated: 2026-07-04.
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