How the Kingdom of Hormuz Gave the Strait Its Name

Figure 1. Historic map showing Hormuz Island, its fortified settlement, and surrounding waters; this image helps situate the island’s strategic role at the entrance to the Persian Gulf.

The Strait of Hormuz is one of the most important maritime passages in the world, but its name comes from a much older Persian history centered on the island kingdom of Hormuz [1][2]. The kingdom grew into a major commercial power in the Persian Gulf, and the prominence of Hormuz was so great that the surrounding waterway came to bear its name [3][2].

Hormuz is a Persian name. Many historians trace it to Middle Persian forms such as Hormoz or Ohrmazd, which are linked to Ahura Mazda in Zoroastrian tradition [4][5]. That gives the name a distinctly Persian linguistic and cultural resonance, even though the exact etymology is discussed in more than one way by historians [6][3][5].

From Mainland Capital to Island Stronghold

The early kingdom was based on the mainland of southern Iran before its rulers shifted the political center to the island of Hormuz, also known historically as Jarun [3][2]. That relocation strengthened the kingdom’s ability to defend itself and to supervise shipping entering and leaving the Persian Gulf [3][1].

Once established on the island, Hormuz became a customs hub and redistribution center for goods moving between Iran, India, East Africa, and the broader Indian Ocean world [3][7]. Spices, pearls, textiles, porcelain, horses, and other valuable goods passed through its port, helping transform the kingdom into one of the richest commercial states in the region [3][7].

A Persian Name with Enduring Power

The significance of Hormuz was not simply geographic; it was also symbolic. Because the name itself is widely associated with Middle Persian religious vocabulary, the strait preserves a Persian historical imprint on one of the world’s most famous waterways [4][5].

Over time, travelers and chroniclers described Hormuz as a wealthy, cosmopolitan, and influential center of trade [3][2]. Its rulers turned strategic location into revenue by taxing commerce and controlling access to a narrow maritime corridor that connected the Gulf to the wider ocean [3][1].

Conquest and Legacy

In the early 16th century, the Portuguese seized Hormuz and built a fort on the island, marking a major shift in the kingdom’s political trajectory [2][8][9]. Yet the island’s historical importance did not disappear, because its commercial legacy and its name remained attached to the strait [8][1].

Figure 2. Fortified remains on Hormuz Island associated with the island’s strategic and commercial importance in the early modern Persian Gulf.

Today, the Strait of Hormuz is known for energy security and geopolitics, but the name endures because of the kingdom that once made the island famous [1][2]. A historically careful way to tell the story is this: Hormuz was a Persian-named island kingdom whose location, wealth, and customs system were so influential that the strait inherited its name [3][4][5].

References

[1] Strait of Hormuz. Wikipedia. https://en.wikipedia.org/wiki/Strait_of_Hormuz

[2] Hormuz Island. Wikipedia. https://en.wikipedia.org/wiki/Hormuz_Island

[3] The Kingdom of Hormuz. Iranologie. https://iranologie.com/the-history-page/the-kingdom-of-hormuz/

[4] Who named the Strait of Hormuz: Is it Persian or Zoroastrian? India Today. https://www.indiatoday.in/education-today/gk-current-affairs/story/strait-of-hormuz-name-origin-persian-or-zoroastrian-2877143-2025-03-03

[5] The name Strait of Hormuz is widely believed to be derived from Zoroastrian tradition. Parsi Zoroastrians Worldwide. https://www.facebook.com/ParsiZoroastriansWorldwide/

[6] Kingdom of Hormuz. Wikipedia. https://en.wikipedia.org/wiki/Kingdom_of_Hormuz

[7] Hormuz. CAPASIA. https://www.capasia.eu/hormuz/

[8] Hormuz | Location, Strait, Iran, & Map. Britannica. https://www.britannica.com/place/Hormuz

[9] Historical background of the Persian Gulf and Strait of Hormuz. Tehran Times. https://www.tehrantimes.com/news/525094/Historical-background-of-the-Persian-Gulf-and-Strait-of-Hormuz