Hata (written: 畑, 秦, 羽田 or 波田) is a surname. Notable people with the surname include:
Aki Hata (born 1966), Japanese musician and lyricistIkuhiko Hata (born 1932), Japanese historianKenjiro Hata (born 1975), Japanese manga authorMasanori Hata (born 1935), Japanese zoologist, essayist, and filmmakerMotohiro Hata (born 1980), Japanese singer-songwriterPrateep Ungsongtham Hata (born 1952), Thai senatorSahachiro Hata (1873–1938), co-discoverer of Salvarsan in 1908 with Paul EhrlichShunroku Hata (1879–1962), Japanese field marshal during World War IIToyosuke Hata (1872–1933), Japanese politician and cabinet minister in the Empire of JapanTsutomu Hata (born 1935), 80th Prime Minister of JapanYawara HataYoku Hata or Akira Hada (born 1975), Japanese stand up comedianYuichiro Hata (born 1967), Japanese politician