Wiberg is a Swedish surname. Notable people with the surname include:
Anders Wiberg (1816–1887), Swedish preacher Curt Wiberg (1898–1988), Swedish sprinter Daryl Wiberg (born 1951), Canadian politician Finn Wiberg (born 1943), Danish footballer and manager Johanna Wiberg (born 1983), Swedish handball player Kenneth B. Wiberg (1927–2026), American chemist and academic Martin Wiberg (1826–1905), Swedish inventor Nicklas Wiberg (born 1985), Swedish decathlete Per Wiberg (born 1968), Swedish musician Pernilla Wiberg (born 1970), Swedish alpine skier Susanne Wiberg (born 1963), Swedish canoeist
See also 27267 Wiberg, a minor planet