Nagata (written: 永田 or 長田) is a Japanese surname. Notable people with the surname include:
Anna Nagata (born 1982), Japanese actressAkira Nagata (born 1985), Japanese vocalist and actorHidejirō Nagata (1876–1943), politician and cabinet minister in the Empire of JapanHideo Nagata (1885–1949), Japanese poet and playwrightHiroko Nagata (1945–2011), Japanese leftist radicalHiroshi Nagata (born 1907), Japanese field hockey playerHisayasu Nagata (1969–2009), Japanese politicianHisayoshi Nagata (born 1962), Japanese former water polo playerIsshū Nagata (1903–1988), Japanese photographerJun-iti Nagata (1925–2007), Japanese mathematicianKatsuhiko Nagata (born 1973), Japanese Olympic wrestler and mixed martial artistMitsuru Nagata (born 1983), Japanese football playerNanae Nagata (1956–2009), Japanese long-distance runnerNagata Hideo (1885–1949), Japanese authorNagata Mikihiko (1887–1964), Japanese authorLinda Nagata (born 1960), American science fiction authorMasaichi Nagata (1906–1985), Japanese film producer and baseball executiveMasayoshi Nagata (1927–2008), Japanese mathematicianMikihiko Nagata (1887-1964), Japanese poet and playwrightMutsuko Nagata (born 1976), Japanese former basketball playerReina Nagata (born 1992), Japanese beauty pageantRyōko Nagata (born 1975), Japanese voice actressRyota Nagata (born 1985), Japanese football playerRyuji Nagata (born 1972), former Japanese football playerShigekazu Nagata (born 1949), Japanese molecular biologistTakashi Nagata (born 1972), former Japanese football playerTakeshi Nagata (1913–1991), Japanese geophysicistTakuya Nagata (born 1990), Japanese football defenderTetsuo Nagata (born 1952), Japanese cinematographerTetsuzan Nagata (1884–1935), Japanese soldier and politicianYuji Nagata (born 1968), Japanese professional wrestler