Loder is a surname. Notable people with the surname include:
Anne Marie Loder (born 1969), Canadian actressDavid Loder (born 1964), English racehorse trainerEdward Loder (1809–1865), English composer and conductorGeorge Loder (1816–1868), English composer and conductor, cousin of Edward LoderGerald Loder, 1st Baron Wakehurst (1861–1936), British barrister, businessman, and politicianJohn Loder (disambiguation), multiple peopleJustus Christian Loder (1753–1832), German anatomistKate Loder (1825–1904), English composer and pianistKellie Loder (born 1988), Canadian musicianKevin Loder (born 1959), American professional basketball playerKurt Loder (born 1945), American television personalityLoder Baronets, barons of Whittlebury and High Beeches in the United KingdomSir Robert Loder, 1st Baronet (1823–1888), English politicianTerry Loder (born 1953), Canadian politician