What does Josiah mean?
Josiah means “Yahweh supports,” from Hebrew Yoshiyahu. Its elements combine ashya, “support,” with yah, referring to the Hebrew God. The name's best-known early bearer is the king of Judah described in the Old Testament.
In English, Josiah has three syllables and a strongly stressed middle: jo-SYE-uh. Its biblical history is ancient, while its strongest American popularity belongs to the twenty-first century.
The biblical king and later use
King Josiah is remembered in the biblical account for religious reforms in Judah. He died fighting the Egyptians at Megiddo in the seventh century BC. His story gave the name an enduring place within biblical naming traditions.
Josiah came into use in England after the Protestant Reformation, as names drawn directly from the Old Testament became more familiar. Its English form keeps the recognizable -iah ending found in several Hebrew-derived biblical names.
Jasiah and Joziah are recorded variants. Josiah itself preserves the most familiar English biblical spelling, linking the modern name directly with the older Hebrew form.
Josiah Wedgwood and ceramics
English potter Josiah Wedgwood gives the name a substantial association with design and manufacturing. His improvements to cream-colored earthenware involved extensive experiments with materials, glazes, color, and finish.
In 1765 he received an order for a tea set for Queen Charlotte. He sent further samples with the commission, attracting more royal interest. In 1766 the queen's patronage allowed the improved creamware to be marketed as Queen's ware, and Wedgwood adopted the title Potter to Her Majesty.
Josiah Henson and freedom in Canada
Minister and community leader Josiah Henson supplies a different historical connection. After more than forty years of enslavement in the United States, he escaped to Upper Canada with his wife and children in 1830.
He worked, preached, and became a leader among other formerly enslaved people. In 1841 he helped establish the settlement of Dawn and its school, the British American Institute, near the community later called Dresden, Ontario.
Henson's work helped create opportunities for education and community building. Canada designated him a national historic person in 1995, recognizing his lasting contribution to the country's history.
Pronunciation and related forms
Josiah is pronounced jo-SYE-uh in English, with stress on the second syllable. The middle vowel rhymes with eye, and the final h is not separately sounded.
Jasiah and Joziah are spelling variants. Isaiah has a similar ending and biblical style but is a different Hebrew name, while Josiah's own meaning centers on divine support.
Josiah in the United States
Josiah's highest American boys' count was 7,079 in 2017. Its best national rank came in 2019, at No. 45. In 2025 it ranked No. 54, compared with No. 57 in 2015 and No. 49 in 2020, showing sustained popularity near the American top fifty.
Sources & methodologyReferences, data & attribution
Meaning and history draw on the references below. American popularity figures use published Social Security Administration records for this exact spelling; counts below five for a name, sex, and year are omitted.
How popular is Josiah?
In 2025, Josiah ranked #54 among boys in the United States, with 5,509 recorded uses. The U.S. birth records first list this spelling for boys in 1880; its largest annual count was 7,079 in 2017. Rankings count each spelling separately. They describe national use, so local familiarity can differ. The popularity chart shows whether the name has remained common, returned after a quieter period, or risen recently.