Spong is a surname in multiple Germanic-speaking cultures. In England, it is an archaic term for a narrow strip of land. Notable people with this name include:
James Osborn Spong (1839–1925), founder of Spong and Co., kitchen equipment manufacturers
See also Dora Beedham née Spong (1879–1969), British nurse and suffragette Spong Hill, Early Saxon cemetery in Norfolk, England Spongmonkey, fictional creature and Internet phenomenon Sponge (disambiguation)