The Longest Serving World Leaders in 2025 🌍

What We're Showing

This graphic shows the longest serving world leaders as of 2025, based on data from Statista.

Figures do not include royal leaders.

Key Takeaways

• Cameroon's Paul Biya is on track to become the longest-serving leader since 1900, following closely behind Cuba’s Fidel Castro, who held power for 52 years.
• Seven of the 12 longest-serving leaders are based in Africa, with a combined tenure of 256 years.
• In Europe, Belarusian President Alexander Lukashenko leads with 31 years in power, followed by Russia’s Vladimir Putin at 25 years.
• Meanwhile, at 85, Iran’s Supreme Leader Ali Khamenei may soon be succeeded by his son, Mojtaba.