Lists of state leaders by age

This article contains various lists of state leaders organized by age, defined as heads of state and/or heads of government.

People currently serving as head of state and/or head of government, a party leader of a one-party state, or a representative of a head of state.

Currently living The following lists show the oldest people who have served office as state leader (not limited to their age while in office).

Paul Biya, currently the oldest serving state leader
Giovanni Paolo Lascaris, the oldest serving state leader of all time whose age is fully verifiable.
Kristrún Frostadóttir, the youngest serving state leader
Guillermo Rodríguez, the oldest-living state leader
Chau Sen Cocsal Chhum, the longest-lived state leader