Flags of Iran

Islamic Republic of Iran

Who & why: mass protests through 1978 force Mohammad Reza Shah into exile in January 1979; Ayatollah Ruhollah Khomeini returns from exile on 1 February 1979, and a referendum that April establishes the Islamic Republic, with a new constitution later that year vesting ultimate authority in a Supreme Leader alongside elected president and parliament. The system has governed Iran continuously since.

What it represents: the green-white-red tricolor is retained from the monarchy, but the Pahlavi lion-and-sun is replaced with a stylized red emblem representing the word "Allah" and a tulip, and the phrase Allahu Akbar ("God is greatest") is repeated 22 times in white Kufic script along the inner edges of the green and red stripes — 22 standing for the date of the Revolution's victory on the Iranian calendar.

Pahlavi Iran

Who & why: Reza Khan, an army officer who had risen to power through a 1921 coup, deposes the last Qajar shah and is crowned Reza Shah Pahlavi in 1925, founding a new dynasty committed to rapid, centralized modernization on the Atatürk model. His son Mohammad Reza Shah succeeds him in 1941 and rules until the 1979 Revolution, overseeing oil nationalization disputes, land reform, and increasingly autocratic rule that fuels the opposition which eventually topples him.

What it represents: the green-white-red tricolor inherited from the constitutional-era Qajar state is retained and formalized, with the Lion and Sun (Sher-o-Khorshid) — an old Persian royal and astrological emblem — fixed in law as the central device in 1933 and refined again in 1964.

Qajar Iran

Who & why: Agha Mohammad Khan, chief of the Qajar tribal confederation, reunifies Iran after the chaotic Zand-era interregnum and is crowned shah in 1796, founding a dynasty that rules until 1925. The era brings catastrophic territorial losses in the Caucasus to Russia (the 1813 and 1828 treaties), growing British and Russian interference, and, from 1906, Iran's first constitution and parliament following the Constitutional Revolution.

What it represents: early Qajar banners varied by ruler and were often a single plain color bearing the Lion and Sun; the green-white-red tricolor with that same emblem centered emerges as the settled national flag only in the Constitutional era from about 1910, the version shown here, and carries forward essentially unchanged into the Pahlavi period.

Afsharid and Zand interregnum

Who & why: the military commander Nader Shah, having driven out Afghan occupiers and Ottoman incursions, deposes the last nominal Safavid ruler in 1736 and founds the short-lived Afsharid dynasty, campaigning as far as Delhi before his 1747 assassination plunges Iran into fresh civil war. Karim Khan of the Zand dynasty gradually restores order from Shiraz, ruling as regent rather than shah until his death in 1779, after which renewed succession conflict runs until the Qajars take power in 1789.

What it represents: no single national flag is reliably attested across this fragmented half-century; contemporary accounts describe royal banners in varying solid colors bearing a stylized sun emblem, a motif that anticipates the Lion-and-Sun symbolism the Qajars would later standardize. Shown here as an honest approximation rather than a documented design.

Safavid Iran

Who & why: Ismail I, leader of the Safavid Sufi order, conquers Tabriz in 1501 and is crowned shah, uniting Iran under native rule for the first time in centuries. In his very first year he declares Twelver Shi'ism the compulsory state religion — a defining, deliberate break from the Sunni Ottoman and Uzbek powers surrounding Iran that has shaped Iranian religious and political identity ever since. The dynasty peaks under Shah Abbas I (r. 1588–1629), whose capital Isfahan becomes a celebrated center of art and architecture, before a long decline ends when Afghan tribesmen sack Isfahan in 1722; a rump Safavid state lingers as a figurehead until Nader Shah's 1736 coronation ends it for good.

What it represents: Safavid state banners are recorded as predominantly green, the color long associated with Shi'a Islam and the house of Ali, sometimes bearing a lion, sun, or Qur'anic inscription; no single fixed national design survives, so a plain green field is shown as the best-attested approximation.

Mongol Ilkhanate and post-Mongol dynasties

Who & why: Genghis Khan's armies devastate the Khwarezmian Empire, which had ruled Iran, from 1219–1221; his grandson Hulagu formally establishes the Ilkhanate as a Mongol khanate over Iran and Iraq in 1256, ruling from Tabriz and Maragheh until its own fragmentation after 1335. The following century and a half sees a shifting patchwork of successor powers — Jalayirids, Muzaffarids, Timur's devastating late-14th-century conquests, and the Turkmen Qara Qoyunlu and Aq Qoyunlu confederations — until the Safavids finally reunify the plateau in 1501.

What it represents: no single flag or banner unites this long, fractured span; Mongol and Turkmen rulers used tamgha clan marks and personal standards rather than territorial flags, and no design can be honestly attributed to "Iran" as a whole across these two and a half centuries. Shown here blank rather than invented.

Persianate dynasties (Samanid, Buyid, Ghaznavid, Seljuk)

Who & why: as Abbasid central authority loosens, a series of Persian and Turkic dynasties govern Iran in nominal deference to the caliph in Baghdad. The Samanids (819–999), based in Bukhara, spark a revival of New Persian literature and administration; the Shi'a Buyids (934–1062) dominate western Iran and even Baghdad itself; the Ghaznavids (977–1186) push into South Asia; and the Seljuk Turks (1037–1194) unify most of Iran and Anatolia under a single sultanate before their own fragmentation opens the door to the Mongols.

What it represents: these dynasties ruled under Islamic religious legitimacy rather than fixed national symbols, and no single banner can honestly represent four centuries and four distinct ruling houses; individual courts used personal or dynastic emblems on coinage and textiles, but no vexillological record survives. Shown here blank rather than invented.

Arab-Islamic conquest and early Caliphal rule

Who & why: Arab Muslim armies defeat the last Sasanian emperor, Yazdegerd III, at the Battle of Nahavand in 642, and by 651 the conquest of the Iranian plateau is effectively complete, ending over a thousand years of pre-Islamic Persian imperial rule. Iran passes under the Rashidun Caliphate, then the Damascus-based Umayyads (661–750), and then the Abbasids after their 750 revolution, until the semi-autonomous Samanid dynasty emerges in 819 as the first major Persianate power to govern with real independence.

What it represents: the plain black banner is the best-documented symbol of this span, associated first with the Abbasid revolutionary movement and then with the caliphate itself from 750; the preceding Umayyad century more often flew plain white banners. Persian language and administrative tradition survive this period and go on to shape the wider Islamic world.

Sasanian Empire

Who & why: Ardashir I overthrows the last Parthian king in 224 and founds the Sasanian Empire, reviving Zoroastrianism as a state religion and centralized Persian imperial administration. For four centuries the Sasanians stand as Rome's, and then Byzantium's, great eastern rival, fighting repeated wars over Mesopotamia, Armenia, and the Caucasus, before decades of mutual exhaustion against Byzantium leave the empire unable to resist the Arab-Muslim conquest that ends it in 651.

What it represents: the Derafsh Kaviani ("banner of Kaveh") is described in the later Persian national epic, the Shahnameh, and in early Islamic-era Arabic sources as the Sasanian royal and state standard — a jeweled, richly bordered banner said to have originated as a blacksmith's leather apron. No physical example survives; the design shown here is an informed reconstruction from those later textual descriptions, not a contemporary artifact.

Parthian Empire

Who & why: Arsaces I, leader of the Parni tribe, breaks away from Seleucid control around 247 BCE and founds the Arsacid dynasty; over the following two centuries the Parthians push the Seleucids out of Iran entirely and build an empire stretching from Mesopotamia to Central Asia, becoming Rome's persistent rival along its eastern frontier — famously destroying a Roman army at Carrhae in 53 BCE. Chronic internal succession disputes weaken the dynasty until Ardashir I, a vassal king from Persis, overthrows the last Parthian king in 224 CE.

What it represents: Parthian armies are known for horse-mounted standards and draco (windsock) banners used in battle, and royal portraiture appears on coinage, but no fixed territorial or dynastic flag is attested with confidence. Shown here honestly blank rather than invented.

Alexander's conquest and Seleucid Persia

Who & why: Alexander the Great defeats Darius III and burns Persepolis in 330 BCE, ending the Achaemenid Empire; after his death in 323 BCE his general Seleucus I Nicator secures Iran and the eastern satrapies, founding the Seleucid Empire, a Greek-Macedonian ruling dynasty over a largely Persian population. Seleucid control over the Iranian plateau steadily weakens through the 3rd century BCE as eastern provinces break away, ending when the rising Parthians seize the Iranian heartland by 247 BCE.

What it represents: Hellenistic kingdoms like the Seleucids identified themselves through royal portraiture, dynastic emblems (the Seleucid anchor among them), and city coinage rather than through a state flag in any modern sense; no attested Seleucid flag exists. Shown here honestly blank rather than invented.

Achaemenid Empire

Who & why: Cyrus the Great overthrows the Median king Astyages around 550 BCE and rapidly builds the first Persian Empire, conquering Lydia, Babylon, and much of Central Asia; his successors, especially Darius I, extend it from the Balkans to the Indus Valley — the largest empire the ancient world had yet seen, administered through satrapies and the Royal Road. The empire's famous wars with the Greek city-states and its eventual conquest by Alexander the Great in 330 BCE end this first great Persian era.

What it represents: the Achaemenids used royal standards and the winged Faravahar symbol in religious and monumental art, and later Greek writers describe an imperial purple banner associated with the Great King, but no securely attested Achaemenid state flag survives in the way later vexillology defines one. Shown here honestly blank rather than invented.

Elam

Who & why: Elam rises in the lowlands and highlands of what is now southwestern Iran from the Proto-Elamite period around 3200 BCE, making it one of the very earliest civilizations anywhere, contemporary with early Sumer. Centered on the city of Susa, Elam spends nearly three millennia in shifting rivalry and exchange with Mesopotamia's own powers — at its most aggressive, an Elamite king sacks Babylon itself in 1158 BCE, toppling the Kassite dynasty. Assyrian king Ashurbanipal's brutal 646 BCE sack of Susa ends Elam as an independent power; its administrative traditions and its capital both pass into Persian hands within a century, as Cyrus the Great's rising Achaemenid Empire absorbs the region and later makes Susa one of its own imperial capitals.

What it represents: no flag or banner is attested for Elam at any stage of its long history; Elamite kings recorded and displayed their power through monumental temple architecture, royal inscriptions, and cylinder seals rather than any woven or painted standard. Shown here honestly blank rather than invented.

World context: Elam's earliest Proto-Elamite writing, c. 3200 BCE, emerges in the same centuries as Sumerian cuneiform in nearby Mesopotamia, among the first writing systems anywhere in the world; Untash-Napirisha's ziggurat at Chogha Zanbil, c. 1275 BCE, rises within a couple of generations of Ramesses II's monuments at Abu Simbel in Egypt, and Ashurbanipal's final destruction of Susa in 646 BCE comes at the height of the same Assyrian king's own famous library at Nineveh, one of the ancient world's great collections of written knowledge.