Hammarskjold in a Swedish surname. Notable persons with that name include:
Emilie Hammarskjöld Swedish composer, singer, pianist, and music teacherPeder Mikaelsson Hammarskjöld (c. 1560–1646), Swedish soldierLorenzo Hammarsköld (1785–1827), Swedish authorEmilie Hammarskjöld (1821–1854), Swedish-American composer, singer, pianist, music teacher and organist, wife of Peder Hjalmar from the Skultana branchCarl Hammarskjöld (1838–1898), Minister of Education for Sweden (1880– 1888)Hugo Hammarskjöld (1845–1937), Minister of Education for Sweden (1906–1909), brother of CarlHjalmar Hammarskjöld (1862–1953), Prime Minister of Sweden (1914–1917), cousin of Carl and HugoCarl Gustaf Hammarskjöld (1865–1940), Secretary of Defense for Sweden (1920–1921), brother of Hjalmar and cousin of Carl and HugoLudvig Hammarskiöld (1869–1949), Swedish general, cousin of HjalmarBo Hammarskjöld (1891–1974), Governor of Södermanland (1935–1958) and State Secretary for Sweden, son of HjalmarÅke Hammarskjöld (1893–1937), Swedish civil servant and diplomat, son of Hjalmar, brother of Bo and DagDag Hammarskjöld (1905–1961), Secretary-General of the United Nations, son of Hjalmar and brother of Åke and BoLennart Hammarskiöld (1912–1974), Swedish banker, son of LudvigHans Hammarskiöld (1925–2012), Swedish photographer