Mata Hari (1876–1917) was a Dutch exotic dancer executed for espionage during World War I.
Mata Hari or Matahari may also refer to:
Film and television Mata Hari (1927 film), a German film starring Magda Sonja Mata Hari (1931 film), starring Greta Garbo in the title role Mata Hari (1985 film), produced by Golan-Globus Mata Hari (unfinished film), a project begun in the 1970s by David Carradine Mata Hari, Agent H21, a 1964 French-Italian spy film Mata Hari (TV series), a 2017 program jointly produced by Ukrainian Star Media company and Channel One Russia
Music and musicals Mata Hari (1967 musical), a 1967 musical by Jerome Coopersmith, Martin Charnin and Edward Thomas Mata Hari (Wildhorn musical), a 2016 musical by Frank Wildhorn, Jack Murphy and Ivan Mechell "Mata Hari" (Ofra Haza song), 1995 song by Israeli singer Ofra Haza "Mata Hari" (Anne-Karine Strøm song), the Norwegian entry in the Eurovision Song Contest 1976 "Mata Hari" (Samira Efendi song), the Azerbaijani entry in the Eurovision Song Contest 2021
Businesses Matahari Books, a Malaysian publishing company Matahari (department store), a major department store chain in Indonesia
Other uses Mata Hari (horse), an American Thoroughbred racehorse Mata Hari (pinball), a 1977 pinball machine Mata Hari (video game), a 2008 adventure game for Windows