Geographic feature

The Persian Gulf

Between Mesopotamia, Arabia, and Iran · c. 2300 BCE – in continued use · Updated July 2026 complete

the Persian Gulf

The Persian Gulf is the shallow sea into which the Tigris and Euphrates empty, the southeastern limit of the Mesopotamian world and its oldest maritime horizon. Down it ran the trade that brought copper from Magan, carnelian and timber from Meluhha, and the goods of Dilmun, the island entrepôt of Bahrain, into the cities of Sumer; up it, in the other direction, came the boats whose cargoes the temple archives of Ur and Lagash recorded. To the Mesopotamians it was simply the “Lower Sea,” tâmtu šaplītu, the counterpart of the “Upper Sea,” the Mediterranean far to the northwest, and to have touched both was the standard boast of a king who claimed the whole earth, from Sargon of Akkad to the Assyrian monarchs nearly two millennia later.

Few features in this atlas show the same name-by-vantage so cleanly. From the rivers the sea lay downstream and so was “lower”; on the Babylonian Map of the World it was the marratu, the “bitter” water that ringed the habitable earth; and to everyone outside Mesopotamia it took the name of the power on its northern shore, the Greek Persikòs Kólpos and Latin Sinus Persicus passing through the Arabic Baḥr Fāris to the modern Persian Gulf. The Mesopotamians, who knew it first and best, named it for where it sat in their own geography; the name that finally stuck was the outsiders’, who knew it as the edge of an empire. A sea charted from its head by the people who sailed it ended up labelled, for all time, from its far rim by the people who merely bordered it.

Transmission map

Each form at the homeland of its language; arcs follow asserted borrowing paths. Slide to a year to see which names were in use.

2300 BCE

in use at this year · formerly in use · not yet attested

the Persian Gulf, the water

Name families

Names that share one root, grouped into trees. A solid line joins a form to the form it was borrowed from; forms hanging together from a dashed rail are parallel descendants of the shared root, with no borrowing asserted between them. A dashed card is the off-page source of a chain: it lives on another entity's page, and links there.

The Persian Sea

The Gulf named for the land on its shore, from Darius's Old Persian "the sea that goes from Persia" through Greek Persikòs Kólpos and Latin Sinus Persicus to the Arabic Baḥr Fāris of the medieval geographers; the naming that prevailed and gives the modern Persian Gulf.

The Lower Sea

The Mesopotamian name for the Persian Gulf by its position relative to the rivers, Sumerian a-ab-ba sig, "lower sea," calqued into Akkadian tâmtu šaplītu; paired with the "Upper Sea" of the Mediterranean, the two bracketing the land a king claimed to rule from edge to edge.

Attestation timeline

When each name is attested, earliest first. Dates bound the name's use, not the language's lifespan.

Names across languages

How to read these letters
  • š sounds like sh; č like ch in church; ǰ like j
  • and x sound like ch in Bach; γ is that sound voiced, a gargled g
  • , , q are emphatic s, t, k, pronounced deeper in the throat; is a strong breathy h
  • ʾ is a catch in the throat, like the middle of “uh-oh”; ʿ is the same made deeper and voiced
  • A line over a vowel (ā ē ī ō ū) means it is held longer; ə is the vowel of “about”
  • A dot under , , or in Indian names means the tongue curls back
  • An asterisk (*) before a form means scholars reconstructed it; it is not found written out

Akkadian c. 2300 BCE – 600 BCE #

𒀀𒀊𒁀 𒆠𒋫

Transliteration
tâmtu šaplītu
IPA
/ˈtaːmtu ʃapˈliːtu/
Meaning
“the Lower Sea”
Derived from
Sumerian a-ab-ba sig
Confidence
attested

The Akkadian name of the Persian Gulf, tâmtu šaplītu, “the Lower Sea,” written with the logogram A.AB.BA for tâmtu, “sea,” and KI.TA, “lower,” for šaplītu. It is the calque of the Sumerian a-ab-ba sig and its exact counterpart on the page for the Mediterranean, the tâmtu elītu or “Upper Sea.” To rule from one sea to the other was the boast of conquering kings from Sargon of Akkad to the Assyrian monarchs of the first millennium, who recorded washing their weapons in both.

tâmtu šaplītu is the Mesopotamian vantage made permanent, a name fixed not by colour, ownership, or the people on the shore but by position relative to the rivers that organized the world. Upper and lower, the two seas bracketed the land between them, and to have touched both was to have reached the edges of the earth. The Gulf that the Greeks would name for Persia and the Arabs for Fāris is, here, simply the lower of the two waters a king at the rivers’ middle could claim.

Sources (2)
  1. Chicago Assyrian Dictionary (CAD), University of Chicago, Vol. T, s.v. tâmtu; Vol. Š/1, s.v. šaplû.
  2. Assyrian and Babylonian royal inscriptions (the formula ištu tâmti elīti adi tâmti šaplīti, "from the Upper Sea to the Lower Sea").
Cite this entry

Rajagopal, Shriram. "tâmtu šaplītu (Akkadian name for The Persian Gulf)." Onomastikon: A Digital Atlas of Ancient Names. Last modified June 19, 2026. https://onomastikon.org/civilizations/persian-gulf#akkadian-tamtu-shaplitu.

Sumerian c. 2300 BCE – 1600 BCE #

𒀀𒀊𒁀 𒋝

Transliteration
a-ab-ba sig
Meaning
“the lower sea”
Confidence
attested

The Sumerian name of the Persian Gulf, a-ab-ba sig, “the lower sea,” built from a-ab-ba, “sea,” and sig, “low, down.” From the cities of southern Mesopotamia the Gulf lay downstream, at the mouths of the rivers, and it was paired with the a-ab-ba igi-nim, the “upper sea,” the Mediterranean far to the northwest. The pair appears in the royal-inscription formula by which a king claimed to rule the whole earth, from the upper sea to the lower; the Sargonic and Ur III rulers measured their dominion by reaching both.

This is the headwater of the entire “Lower Sea” tradition: the Akkadian tâmtu šaplītu is a direct calque of it, and through Akkadian the upper-lower framing became the standard Mesopotamian way of bracketing the world. Alone among the Gulf’s names, it is the one given by a people who actually lived on its shores, the Sumerians of Ur, Eridu, and Lagash whose boats worked the trade to Dilmun. The sea everyone else would name from a distance, for the empire on its rim, the people at its head named simply for being downstream.

Sources (2)
  1. Heimpel, Wolfgang. "Das Untere Meer." Zeitschrift für Assyriologie 77 (1987): 22–91.
  2. Frayne, Douglas. Sargonic and Gutian Periods (2334–2113 BC). Royal Inscriptions of Mesopotamia, Early Periods 2. Toronto: University of Toronto Press, 1993.
Cite this entry

Rajagopal, Shriram. "a-ab-ba sig (Sumerian name for The Persian Gulf)." Onomastikon: A Digital Atlas of Ancient Names. Last modified June 19, 2026. https://onomastikon.org/civilizations/persian-gulf#sumerian-a-ab-ba-sig.

Akkadian c. 800 BCE – 500 BCE #

𒈥𒊏𒌈

Transliteration
marratu
IPA
/marˈratu/
Meaning
“the bitter (sea)”
Confidence
attested

The Akkadian marratu, “bitter,” naming the Persian Gulf for its salt taste. On the Babylonian Map of the World, the clay tablet BM 92687 of about the sixth century BCE, the band of water that rings the habitable earth is labelled nāru marratu, “the Bitter River,” four times, once introduced by the íd-determinative that marks a watercourse. The word is the same one used for the brackish marsh-water of the south, applied to the sea that closed off the world.

Where tâmtu šaplītu names the Gulf by position, marratu names it by sensation, the taste of the water itself, and in doing so it doubles as cosmology: on the map the real Gulf at the foot of the rivers and the world-encircling ocean beyond all lands are the same bitter water. The sea that bounded Mesopotamian trade also bounded the imaginable world, and the Babylonians drew it as a single bitter ring. The edge of the map and the edge of the sea-trade were, for them, one and the same brine.

Sources (2)
  1. Chicago Assyrian Dictionary (CAD), University of Chicago, Vol. M/1, s.v. marratu A; s.v. nāru marratu.
  2. Horowitz, Wayne. Mesopotamian Cosmic Geography. Winona Lake: Eisenbrauns, 1998, ch. 2 (the Babylonian Map of the World, BM 92687).
Cite this entry

Rajagopal, Shriram. "marratu (Akkadian name for The Persian Gulf)." Onomastikon: A Digital Atlas of Ancient Names. Last modified June 19, 2026. https://onomastikon.org/civilizations/persian-gulf#akkadian-marratu.

Old Persian c. 520 BCE – 486 BCE #

𐎭𐎼𐎹

Transliteration
drayah
IPA
/draˈja.ha/
Meaning
“the sea”
Confidence
attested

The Old Persian word for the Gulf is no proper name but the plain drayah, “the sea,” in a relative phrase. On the stele Darius set up beside his canal between the Nile and the Gulf, the Suez inscription DZc, the king says he ordered the channel dug “from the river called Nile that flows in Egypt to the sea that goes from Persia,” drayah tya hacā Pārsā aitiy. The stele is quadrilingual, the Persian standing beside Elamite, Babylonian, and Egyptian versions of the same boast.

Tellingly, the Persians did not call the Gulf “the Persian Sea.” To them it was simply the sea, identified, when it had to be, by the fact that it began at their own coast. The relational phrase betrays the vantage: from inside the empire the water needed no national name, because it was the one the homeland touched. The “Persian” label that the Greeks, Romans, and Arabs fixed on it, and that the modern world still uses, describes a point of view the Persians never occupied.

Sources (2)
  1. Kent, Roland G. Old Persian: Grammar, Texts, Lexicon. 2nd ed. New Haven: American Oriental Society, 1953, s.v. draya-; inscription DZc.
  2. Darius I, Suez canal stele (DZc), c. 500 BCE (Old Persian, Elamite, Babylonian, and Egyptian).
Cite this entry

Rajagopal, Shriram. "drayah (Old Persian name for The Persian Gulf)." Onomastikon: A Digital Atlas of Ancient Names. Last modified June 19, 2026. https://onomastikon.org/civilizations/persian-gulf#old-persian-drayah.

Ancient Greek c. 340 BCE – 600 CE #

Περσικὸς κόλπος

Transliteration
Persikòs Kólpos
IPA
/per.si.ˈkos ˈkol.pos/
Meaning
“the Persian gulf”
Confidence
attested

The Greek name of the Gulf, Persikòs Kólpos, “the Persian gulf,” after Persia, the land on its northern shore. It is the standard term of the Greek geographers: Strabo and Ptolemy set out its bounds, and Arrian’s Indica, drawing on the admiral Nearchus, records the first Greek account of sailing it, the fleet Alexander sent home from the Indus feeling its way up the Persian coast to the mouths of the Tigris and Euphrates.

This is the first naming of the Gulf from its far shore. To the Greeks the defining fact of the sea was the empire that ruled its northern coast, so the water became “Persian,” a vantage the opposite of the Mesopotamian “lower sea” and one the Persians themselves did not use. Through its Latin translation the name passed into every European language and became the modern Persian Gulf; the label the world now uses was set by outsiders who knew the sea as the edge of someone else’s empire.

Sources (2)
  1. Strabo, Geographica 16.3.1–2.
  2. Claudius Ptolemy, Geographia 6.7; Arrian, Indica 40–41 (Nearchus's coastal voyage).
Cite this entry

Rajagopal, Shriram. "Persikòs Kólpos (Ancient Greek name for The Persian Gulf)." Onomastikon: A Digital Atlas of Ancient Names. Last modified June 19, 2026. https://onomastikon.org/civilizations/persian-gulf#ancient-greek-persikos-kolpos.

Latin c. 50 BCE – 600 CE #

Sinus Persicus

Transliteration
Sinus Persicus
IPA
/ˈsi.nus ˈper.si.kus/
Meaning
“the Persian gulf”
Derived from
Ancient Greek Persikòs Kólpos
Confidence
attested

The Latin name of the Gulf, Sinus Persicus, taken straight from the Greek Persikòs Kólpos and keeping its sense; Pliny and Pomponius Mela place it in the Roman world-picture as the great sea east of Arabia. The Romans never sailed it as the Greeks of Alexander’s fleet had, but they inherited the geographers’ name and the trade-knowledge behind it.

Sinus Persicus is the conduit by which the Greek name reached the modern world: through Latin and the European vernaculars built on it, the Gulf is “Persian” in English, French, and the rest. The naming that won out over the Mesopotamian “lower sea” and the Babylonian “bitter sea” was neither the oldest nor the most local but the one a Roman encyclopedist copied from a Greek map. The sea kept the name of an empire that had fallen centuries before the label was fixed for good.

Sources (2)
  1. Pliny the Elder, Naturalis Historia 6.28.108–115.
  2. Pomponius Mela, De Chorographia 3.8.
Cite this entry

Rajagopal, Shriram. "Sinus Persicus (Latin name for The Persian Gulf)." Onomastikon: A Digital Atlas of Ancient Names. Last modified June 19, 2026. https://onomastikon.org/civilizations/persian-gulf#latin-sinus-persicus.

Classical Arabic c. 700 CE – 1453 CE #

بحر فارس

Transliteration
Baḥr Fāris
IPA
/baħr ˈfaːris/
Meaning
“the Sea of Persia”
Confidence
attested

The Arabic name of the Gulf, Baḥr Fāris, “the Sea of Persia,” the standard term of the medieval geographers. Al-Iṣṭakhrī and Ibn Ḥawqal, working in the tenth century, mapped it as the great sea of the eastern caliphate, its head at Baṣra and its coasts the route to India and China; their world maps make it one of the two seas, with the Mediterranean, that frame the Islamic world.

Baḥr Fāris carries the Greco-Roman “Persian” naming into Arabic, still fixing the sea to Fāris on its eastern shore even as its trade now ran to Arab and Persian ports under one caliphate. The continuity is striking: from Greek Persikòs Kólpos through Latin Sinus Persicus to Arabic Baḥr Fāris, three successive world-powers’ geographers all named the Gulf for the same far province, none of them for the Mesopotamian rivers that fed it. The outsiders’ name, once set, simply kept being handed on.

Sources (2)
  1. al-Iṣṭakhrī, Kitāb al-Masālik wa-l-Mamālik. Ed. de Goeje, Leiden: Brill, 1870.
  2. Ibn Ḥawqal, Ṣūrat al-Arḍ. Ed. de Goeje, Leiden: Brill, 1873.
Cite this entry

Rajagopal, Shriram. "Baḥr Fāris (Classical Arabic name for The Persian Gulf)." Onomastikon: A Digital Atlas of Ancient Names. Last modified July 20, 2026. https://onomastikon.org/civilizations/persian-gulf#classical-arabic-bahr-fars.

Middle Persian c. 800 CE – 900 CE #

Transliteration
Pūdīg
IPA
*puːˈdiːɡ
Confidence
attested

The Middle Persian name Pūdīg comes from the Bundahišn’s chapter on the seas, the same cosmological inventory that yields the Kamrōd recorded for the Caspian: of the three principal salt seas beside the world-ocean Frāxkard, the Pūdīg is the largest, the one in which there is flow and ebb, and the one joined directly to the wide-formed ocean. A tidal sea adjoining the open ocean on the empire’s southern flank can only be the gulf on Iran’s own coast, and the identification with the Persian Gulf has been standard since West’s edition; the name is the tradition’s own, with no ethnonym in it and no certain etymology. The attestation is Book Pahlavi, which has no Unicode encoding, so the entry carries transliteration only.

Every other name on this page points at Persia: the Greek Persikòs kólpos, the Latin Sinus Persicus, the Arabic Baḥr Fāris, all naming the water for the power on its northern shore, and even the Old Persian entry calls it the sea “that goes from Persia.” The Persians’ own tradition is the single one that does not. The Zoroastrian books name the gulf not for any nation but for its behavior in the order of creation, the sea that breathes. The world named the water after the Persians; the Persians named it after the tide, and between those two habits lies the whole difference between looking at a coast from outside and living on it.

Sources (2)
  1. Bundahišn, ch. 13 in E. W. West's translation (Pahlavi Texts, Part I, Sacred Books of the East 5, Oxford: Clarendon Press, 1880), the chapter on the seas.
  2. Anklesaria, Behramgore Tehmuras. Zand-Ākāsīh: Iranian or Greater Bundahišn. Bombay, 1956.
Cite this entry

Rajagopal, Shriram. "Pūdīg (Middle Persian name for The Persian Gulf)." Onomastikon: A Digital Atlas of Ancient Names. https://onomastikon.org/civilizations/persian-gulf#middle-persian-pudig.

Classical Persian c. 982 CE – in continued use #

دریای پارس

Transliteration
Daryā-yi Pārs
IPA
/darˈjaː ji paːrs/
Meaning
“the Sea of Pars”
Confidence
attested

The Persian name of the gulf, Daryā-yi Pārs, “the Sea of Pars,” with the native daryā where the Arab geographers write baḥr: the Ḥudūd al-ʿĀlam, the oldest surviving Persian geography, describes it among the world’s great seas, the water that takes its name from the province on its northern shore. The name is the Persian half of a pair with the Arabic Baḥr Fāris beside it on this page, the same designation in the two languages of the medieval Islamic world, and it continues in the modern Iranian Khalīj-i Fārs.

Within the page’s long history the entry marks the moment the sea’s name came ashore. The Sumerians and Babylonians had named it by position, the Lower Sea against the Upper; the Greeks named it for the empire they sailed against. The Persian form belongs to the people of the coast itself, naming their own water for their own province, and it is the only name on this page in a language spoken on the gulf’s shore when the name was coined. The sea has carried the province of Pars in its name for over a thousand years in two languages; the Ḥudūd al-ʿĀlam’s entry is where the owner’s copy of the name begins.

Sources (2)
  1. Ḥudūd al-ʿĀlam ("The Regions of the World"), ch. 3 (on the seas). Trans. V. Minorsky. London: Luzac & Co., 1937.
  2. Steingass, Francis. A Comprehensive Persian-English Dictionary. London: Routledge, 1892, s.v. دریا.
Cite this entry

Rajagopal, Shriram. "Daryā-yi Pārs (Classical Persian name for The Persian Gulf)." Onomastikon: A Digital Atlas of Ancient Names. Last modified July 24, 2026. https://onomastikon.org/civilizations/persian-gulf#classical-persian-darya-ye-pars.

Cite this page

Rajagopal, Shriram. "The Persian Gulf." Onomastikon: A Digital Atlas of Ancient Names. Last modified July 24, 2026. https://onomastikon.org/civilizations/persian-gulf.

@misc{onomastikon-persian-gulf,
  author = {Rajagopal, Shriram},
  title = {The Persian Gulf},
  year = {2026},
  howpublished = {\url{https://onomastikon.org/civilizations/persian-gulf}},
  note = {Onomastikon: A Digital Atlas of Ancient Names}
}

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