Alder or Alders is a surname. Notable people with the surname include:
Alan Alder (1937–2019), Australian ballet dancer Alison Alder (born 1958), Australian screenprinter Berni Alder (1925–2020), German-born American physicist Christian Alder (born 1978), German football player Christopher Alder (19601998), British soldier who died in police custody; Death of Christopher Alder Daniel Alders, American politician Danny Alder (born before 2007), Australian actor Don Alder (born before 1985), Canadian guitarist Douglas D. Alder (1932–2023), American historian and academic administrator Esther Alder (born 1958), Swiss politician Fred Alder (18891960), Australian football player Guillermo Alder (born 1971), Argentine cross-country skier Henry Alder (18741949), Australian football player Inés Alder (born 1970), Argentine cross-country skier Janine Alder (born 1995), Swiss ice hockey player Jim Alder (born 1940), British distance runner John C. Alder (born 1944), English musician better known as "Twink" Jonathan Alder (17731849), American pioneer Joshua Alder (17921867), British zoologist and malacologist Kurt Alder (190258), German chemist, 1950 Nobel Prize in Chemistry Alder (crater), a lunar crater named after Kurt Diels–Alder reaction, a chemical reaction named after Otto Diels and Kurt Mike Alder (born before 2004), Australian mathematician and writer Ray Alder (born 1967), American singer, Fates Warning Roger Alder (born before 2005), British chemist Thomas Alder (193268), German actor Vera Stanley Alder (18981984), English portrait painter and mystic Viviana Alder (born 1957), Argentine researcher
Other people named Alder George Alder Blumer (18571940), British-born American physician, mental hospital administrator and journal editor Rhondda Alder Kelly (19262014), Australian beauty queen William Alder Strange (181374), English headmaster and author Charles Romley Alder Wright (184494), English chemist and physicist
See also Alford & Alder, a British former automotive engineering company Gregory Scott Aldering (born 1960), American astronomer Alda (name) Alders (disambiguation) Allder (disambiguation)