Results for Japan in Javelin Throw, Men

Olympic and Intercalated results only.

Games	Athlete/Team	Placement
1928 Summer Olympics	Kosaku Sumiyoshi	13 QR
1932 Summer Olympics	Kosaku Sumiyoshi	8
	Saburo Nagao	10
1936 Summer Olympics	Noboru Ueno	=20 QR
	Saburo Nagao	DNS
1964 Summer Olympics	Takashi Miki	19 QR
	Hideta Kanai	22 QR
1984 Summer Olympics	Masami Yoshida	5
	Kazuhiro Mizoguchi	20 QR
1988 Summer Olympics	Kazuhiro Mizoguchi	19 QR
	Masami Yoshida	21 QR
1992 Summer Olympics	Masami Yoshida	23 QR
2004 Summer Olympics	Yukifumi Murakami	18 QR
2008 Summer Olympics	Yukifumi Murakami	15 QR
2012 Summer Olympics	Roderick Genki Dean	9
	Yukifumi Murakami	23 QR
2016 Summer Olympics	Ryohei Arai	11
2020 Summer Olympics	Takuto Kominami	19 QR
2024 Summer Olympics	Roderick Genki Dean	13 QR