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Which Is The Second Largest Organisation In The World?

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Last updated on 5 min read
The second largest intergovernmental organization in the world is the Organisation of Islamic Cooperation (OIC), with 57 member states representing over 1.84 billion people as of 2026.

Where exactly does the OIC operate geographically?

You’ll find the OIC’s footprint across four continents—Asia, Africa, Europe, and South America. Its headquarters sits in Jeddah, Saudi Arabia, a city that’s long served as a cultural and commercial crossroads for the Islamic world. The organization essentially acts as the unified voice for Muslim-majority nations, pushing for shared goals in economic growth, social fairness, and political stability wherever its members live.

What are the most important numbers to know about the OIC?

Metric Value Source Year
Member states 57 2026
Collective population ~1.84 billion 2026
Continents represented 4 2026
Headquarters location Jeddah, Saudi Arabia 2026
Establishment year 1969 2026

How did the OIC get started, and what has it actually done?

Back in 1969, Muslim leaders gathered in Rabat, Morocco, for an emergency summit that led to the OIC’s creation two years later. It began as the Organisation of the Islamic Conference, then rebranded in 2011 to sound more current. Over the decades, it’s pushed hard for Muslim rights—think peace talks in Bosnia, advocacy in Palestine, and campaigns against Islamophobia in Europe. Pakistan stands as the group’s second-largest member by population, while Russia and Thailand hold observer status, showing how the OIC tries to stay inclusive.

Which countries belong to the OIC, and how does membership work?

Big players like Indonesia, Nigeria, and Bangladesh are among the 57 members. Summits rotate around these countries—most recently in Istanbul during 2025. If you’re curious about visiting or researching, the OIC Secretariat in Jeddah keeps a digital library of resolutions and reports, though public access is limited. To join, countries usually need a Muslim majority or strong Islamic cultural roots, though observer states can slide in under special rules.

Right now, the OIC is doubling down on renewable energy and digital upgrades to meet the needs of its young population. Its yearly budget—paid for by member dues—funds education, health, and humanitarian projects, especially in war-torn areas.

Want to dig deeper? Check the official site run by the Organisation of Islamic Cooperation.

Why isn’t the United Nations the second-largest organization?

Good question. The UN technically has more member states (193 vs. 57), but it’s a universal body open to every country. The OIC, on the other hand, is specifically built around Muslim-majority nations and Islamic cultural ties, giving it a focused but massive footprint.

How does the OIC compare to the African Union in size?

The African Union has 55 members, so it’s close in number but covers a single continent. The OIC stretches across four continents and represents nearly four times Africa’s population, making it the clear second-largest intergovernmental body worldwide.

What’s the OIC’s biggest challenge right now?

Balancing the diverse priorities of 57 member states isn’t easy. You’ve got oil-rich Gulf nations, rapidly growing economies in Southeast Asia, and struggling democracies in Africa—all trying to agree on common goals. Honestly, this is where the organization sometimes stumbles.

Does the OIC have any real power, or is it just talk?

It’s got more clout than you might think. The OIC can issue resolutions that carry real diplomatic weight, fund large-scale aid programs, and even mediate conflicts. That said, its influence depends entirely on member unity—when countries agree, things happen; when they don’t, progress stalls.

How often do OIC summits happen, and who decides the host?

Summits roll around every year or two, rotating among member nations. The agenda is set by the host country in coordination with the OIC Secretariat. Istanbul hosted the most recent one in 2025; the next location hasn’t been announced yet.

What’s the OIC’s budget like, and where does the money come from?

For 2026, the budget is funded entirely by member contributions, scaled roughly by each country’s GDP. Big donors include Saudi Arabia, the UAE, and Kuwait, while smaller members pay smaller shares. Total spending usually lands in the low hundreds of millions—peanuts compared to the UN, but enough to run key programs.

Has the OIC ever expelled a member?

Not yet. Membership is sticky—once you’re in, you’re in. The closest call came in 2019 when Malaysia floated the idea of booting Myanmar over its treatment of Rohingya Muslims, but nothing formal ever happened.

What’s the youngest member of the OIC?

Comoros joined in 1993, making it one of the newer faces in the group. It’s also one of the smallest by population, but it punches above its weight in advocacy for small island states.

Does the OIC have a military arm?

Nope. Unlike NATO or the African Union’s standby force, the OIC has no standing army. It relies on diplomatic pressure and humanitarian aid instead of boots on the ground.

What’s the most controversial decision the OIC ever made?

Its 1991 resolution condemning Salman Rushdie’s *The Satanic Verses* probably tops the list. The backlash was fierce, and it’s still cited today as an example of the organization putting religious sensitivities ahead of free expression.

How can a country become an observer state?

Observer status is basically an on-ramp. Countries apply through the OIC Secretariat, then need approval from the Council of Foreign Ministers. Russia and Thailand got in this way; others like India and China have also expressed interest over the years.

What’s the OIC’s stance on Israel-Palestine?

It’s the cornerstone of their foreign policy. The OIC consistently backs Palestinian statehood, funds refugee programs, and pushes for international recognition of East Jerusalem as Palestine’s capital. There’s near-unanimous support on this issue across all members.

This article was researched and written with AI assistance, then verified against authoritative sources by our editorial team.
MeridianFacts Countries & Maps Team
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