Nosaka is a Japanese surname. Notable people with the surname include:

  • Akiyuki Nosaka (1930–2015), Japanese novelist, singer, lyricist, and former member of the House of Councillors
  • Keiko Nosaka (born 1938), prominent Japanese koto player, specializing in contemporary music
  • Koken Nosaka (1924–2004), Japanese politician
  • Sanzō Nosaka (1892–1993), the co-founder of the Japanese Communist Party

See also

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  • Nosaka, Chiba, town located in Sōsa District, Chiba Prefecture, Japan