The vast majority of the Mashhadi people are ethnic Persians who form over 95% of the city's population.

Zoroastrians mainly are ethnic Persians and are concentrated in the cities of Tehran, Kerman, and Yazd.

Shia Muslims, especially ethnic Persians, were given preferential state treatment, economic and occupational opportunities, and dominated the government.

The northern part of the province is called Sistan and is inhabited by ethnic Persians that speak a dialect of Persian called Sistani.

The southern half including the capital of the province, Gorgan is inhabited by ethnic Persians and they have adopted the Tehrani dialect of Persian.

Consequently, they were slowly able to take on administrative jobs in areas which had hitherto been the exclusive preserve of the ethnic Persians.

Iranian Kuwaitis are of diverse ethnic backgrounds, the predominant being ethnic Persians (including Lurs), Azeris, Kurds and Balochis.

The 'elite' contingents of the Persian infantry seem to have been the ethnic Persians, Medians, Cissians and the Saka.

Not all this literature is written in Persian, as some consider works written by ethnic Persians in other languages, such as Greek and Arabic, to be included.

Many famous Arabic writers were ethnic Persians and others (e.g. Harun Al-Rashid) were of mixed ancestry.