Results for Japan in 100 metres Butterfly, Women

Olympic and Intercalated results only.

Games	Athlete/Team	Placement
1960 Summer Olympics	Shizue Miyabe	15
1964 Summer Olympics	Eiko Takahashi	7
	Kimiko Sato	16
	Hiroko Saito	=24
1968 Summer Olympics	Yasuko Fujii	14
1972 Summer Olympics	Mayumi Aoki	1	Gold
	Noriko Asano	8
1976 Summer Olympics	Yasue Hatsuda	13
	Kuniko Banno	16
1984 Summer Olympics	Kiyomi Takahashi	11
	Takemi Ise	14
1988 Summer Olympics	Kiyomi Takahashi	10
	Takayo Kitano	14
1992 Summer Olympics	Rie Shito	8
	Yoko Kando	11
1996 Summer Olympics	Hitomi Kashima	4
	Ayari Aoyama	6
2000 Summer Olympics	Junko Onishi	6
	Maki Mita	=21
2004 Summer Olympics	Junko Onishi	8
	Yuko Nakanishi	14
2008 Summer Olympics	Yuko Nakanishi	=18
	Yuka Kato	23
2012 Summer Olympics	Yuka Kato	11
	Natsumi Hoshi	23
2016 Summer Olympics	Rikako Ikee	5
	Natsumi Hoshi	10
2024 Summer Olympics	Mizuki Hirai	7
	Rikako Ikee	12