Weld is a surname of Anglo-Saxon English and Dutch origin.

Notable people

• Weld family, an extended English family going back to the 11th century
• Alfred Weld (1823-1890), leading English Jesuit and astronomer, grandson of Thomas Weld of Lulworth
• Cecil Weld-Forester, 1st Baron Forester (1767-1823), Anglican, Member of Parliament, added Weld name for inheritance
• Cecil Weld-Forester, 5th Baron Forester (1843-1917), Conservative peer and Member of Parliament, son of Orlando
• Charles Richard Weld (1813-1869), English writer and historian, son of Isaac
• Charles Joseph Weld (1893-1962), officer in the British Indian Army in both World wars
• Dermot Weld (born 1949), Irish veterinarian and racehorse trainer
• Edward Weld (1705-1761), son of Humphrey Weld, sued at the Arches Court by his first wife, countersued and won
• Eadric the Wild (active 1068-70), nephew of the Duke of Mercia, Norman Conquest resister and presumed ancestor of Welds
• Edward Weld (1741-1775), English recusant landowner and first husband of Maria Fitzherbert
• Sir Frederick Weld (1823–1891), Prime minister of New Zealand, grandson of Thomas Weld of Lulworth
• George Weld-Forester, 3rd Baron Forester (1807-1886), Father of the House of Commons and Peer
• Henry Joseph Weld-Blundell (1848-1901), Australian politician
• Herbert Weld Blundell (1852 – 1935), English traveller in Africa, archaeologist, philanthropist and yachtsman
• Sir Humphrey Weld (c.1550-1610), member of the Worshipful Company of Grocers, Lord Mayor of London
• Humphrey Weld (of Lulworth) (1612–1685) MP, purchaser of Lulworth estate, son of Sir John of Arnold's Court
• Isaac Weld (1774–1856), Irish explorer and artist
• Sir John Weld (1582–1622), of Arnold's Court, Edmonton, Middlesex, son of the Lord Mayor founded the Weld Chapel
• Sir John Weld (1613–1681), member of Parliament in 1679
• Sir John Weld (1615-1674), of Compton Bassett
• John Welde (1642), of Willye, High Sheriff of Shropshire
• John Weld-Forester, 2nd Baron Forester (1801-1877) Tory politician
• Joseph Weld (yachtsman) (1777-1863), recusant third son of Thomas Weld of Lulworth, competitive yachtsman
• Sir Joseph William Weld (1909-1992), army officer, landowner and Lord Lieutenant of Dorset
• Maria Weld (1756-1837), second wife of Edward Weld of Lulworth, better known as Mrs Fitzherbert
• Orlando Weld-Forester, 4th Baron Forester (1813-1894), British Peer and Anglican clergyman
• Thomas Welde (1595-1661), temporary Puritan emigrant from Essex to New England
• Thomas Weld (of Lulworth) (1750-1810), recusant landowner of Lulworth and philanthropist, father of fifteen children
• Thomas Weld (cardinal) (1773–1837), eldest son of Thomas Weld of Lulworth, English Roman Catholic cardinal
• Thomas Weld Blundell (1808-1883), landowner grandson of Thomas Weld of Lulworth, added Blundell name for inheritance
• Wilfrid Weld (1934-2015), landowner and restorer of Lulworth Castle
• William Weld (1649–1698), son of Sir John of Compton Basset, landowner

• Weld family, an extended family of New England
  • Charles Goddard Weld, 1857–1911, physician and philanthropist
  • Daniel S. Weld, computer scientist
  • Ezra Greenleaf Weld, 1801–1874, a photographer
  • Francis Weld Peabody, 1881-1927, American physician and Harvard Medical School teacher
  • George Walker Weld, 1840–1905, philanthropist, athlete
  • Greg Weld, race car driver and manufacturer
  • Isabel Weld Perkins, 1876–1948
  • John Weld Peck (1874 – 1937), a United States District Judge for Ohio
  • John Weld (1905 - 2003), newspaper reporter in New York
  • Philip Saltonstall Weld, 1915–1984, newspaper publisher and yacht racer
  • Seth L. Weld, Philippine–American War Medal of Honor recipient
  • Stephen Minot Weld, 1806–1867, schoolmaster, investor, and politician
  • Stephen Minot Weld, Jr., 1842–1920, horticulturist and Army officer
  • Susan Roosevelt Weld, wife of William Weld
  • Theodore Dwight Weld, 1803–1895, an abolitionist
  • Theresa Weld Blanchard (1893–1978), a figure skater
  • Tuesday Weld, 1943–, an actress
  • William Weld, former Governor of Massachusetts
  • William Gordon Weld, 1775–1825, ship owner
  • William Fletcher Weld, 1800–1881, ship owner