how long has khamenei been in power

Ali Khamenei was Iran’s supreme leader from June 1989 until his death in February 2026, which is about 36 and a half years in power as supreme leader, and roughly 44–45 years in top leadership if you include his presidency starting in 1981.

Quick Scoop: How long has Khamenei been in power?

• He became president of Iran in 1981, a few years after the 1979 Islamic Revolution.

• He then rose to the position of supreme leader in 1989, after Ayatollah Ruhollah Khomeini’s death.

• His tenure as supreme leader lasted from 1989 to 2026, making it about 36–37 years in that role.

• Counting from his presidency in 1981 to his death in 2026, he spent over four decades at the top of Iran’s power structure.

In many recent news pieces, he is described as having ruled Iran for “almost 37 years” as supreme leader and around “four decades” overall — one of the longest-lasting leaders in the region.

TL;DR: If you mean as supreme leader , around 36–37 years; if you include his time as president , over 40 years in power at the apex of Iran’s political system.

Information gathered from public forums or data available on the internet and portrayed here.