Miyoko Asahina (朝比奈三代子; born September 24, 1969) is a retired female long-distance runner from Japan. She set her personal best (2:25:52) in the women's marathon event on April 17, 1994, to win the Rotterdam Marathon.

Achievements Representing 1992World Half Marathon ChampionshipsNewcastle upon Tyne, United Kingdom 1stTeam Half Marathon1993World Half Marathon ChampionshipsBrussels, Belgium 2ndTeam Half Marathon1994Rotterdam MarathonRotterdam, Netherlands 1stIndividual Marathon

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