The Mazanderani people or Tabari people are an Iranian people whose homeland is the North of Iran (Tabaristan). Like the closely related Gilakis the Mazanderani are a Caspian people who inhabit the south coast of the Caspian Sea, part of the historical region that used to be called Tabaristan. The Elburz mountains mark the southern boundary of Mazanderani settlement.
The Mazanderani number between three million and four million (2006 estimate). Their dominant religion is Shiite Islam.
Most Mazanderani people live on the southeastern coast of the Caspian Sea. Many of them are farmers and fishermen. The Mazanderani are closely related to the neighbouring Gilaki people as well as Caucasian peoples (e.g., the Georgians, Armenians, and Azerbaijanis).
The Mazanderani language is a Northwestern Iranian language spoken by the Mazanderani people. Most Mazanderani are fluent in Persian. The Gilaki and Mazanderani languages (but not other Iranian languages) share certain typological features with Caucasian languages.