Zephaniah is both a given name and surname. 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 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 (Michigan Attorney General) (1796–1871), American 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 (born 1958), British Jamaican writer
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
