Zephaniah is both a given name and surname. The name is of Hebrew origin and it means "God has hidden".

Notable people with the name include:

Zephaniah Webster Bunce (1787–1889), American businessman Zephaniah Kingsley Sr. (1734–1792), British merchant Zephaniah Kingsley (1765–1843), American planter Zephaniah Legumana, bishop Zephaniah Alexander Looby (1899–1972), American lawyer Zephaniah Swift Moore (1770–1823), American Congregational clergyman Zephaniah Ncube (born 1957), Zimbabwean long-distance runner Zephaniah Platt (1735–1807), American politician Zephaniah Platt (1796–1871), American politician Zephaniah C. Platt (1805–1884), American farmer, banker, and politician Zephaniah Skinner (born 1989), Australian rules footballer Zephaniah Swift (1759–1823), American author Zephaniah Thomas (born 1989), English footballer Zephaniah Turner Jr. (1812–1876), American politician Zephaniah Williams (1795–1874), Welsh Chartist Benjamin Zephaniah (1958–2023), British writer and dub poet with West Indian roots John Zephaniah Bell (1794–1883), Scottish artist John Zephaniah Holwell (1711–1798), British surgeon Dewi Zephaniah Phillips (1934–2006), Welsh philosopher Charles Zephaniah Platt (1773–1822), American politician

See also Zeph (given name)