Award Years for Seiun Award
| 1970's: | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 |
| 1980's: | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 |
| 1990's: | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 |
| 2000's: | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 |
| 2010's: | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 |
| Best Japanese Long Story | ||
| Win |
終わりなき索敵?Owarinaki Sakuteki
|
谷甲州?たにこうしゅう
Kōshū Tani |
| Best Japanese Short Story | ||
| Win |
くるぐる使い?Kuruguru Tsukai
|
大槻ケンヂ?Ōtsuki Kenji
Outsuki Kenji Otsuki Kenji Ohtsuki Kenji |
| Best Translated Long Story | ||
| Win |
内なる宇宙 (上)?うちなるうちゅう (じょう)
(translation of Entoverse)
Uchi Naru Uchū (Jō) Uchi Naru Uchuu (Jou) |
ジェイムズ・P・ホーガン?Jeimuzu P. Hōgan
Jeimuzu P. Hoogan |
| Win |
内なる宇宙 (下)?うちなるうちゅう (か)
(translation of Entoverse)
Uchi Naru Uchū (Ka) Uchi Naru Uchuu (Ka) |
ジェイムズ・P・ホーガン?Jeimuzu P. Hōgan
Jeimuzu P. Hoogan |
| Best Translated Short Story | ||
| Win |
タンジェント?Tanjento
(translation of Tangents)
|
グレッグ・ベア?Gureggu Bea
|
| Best Artist | ||
| Win | ---- |
米田仁士?Hitoshi Yoneda
|
| Best Nonfiction | ||
| Win |
やさしい宇宙開発入門―予備知識不要! スプートニクから宇宙ステーション構想まで?Yasashii Uchū Kaihatsu Nyūmon: Yabichishiki Fuyō! Supūtoniku kara Uchū Sutēshon Kōsō made
Yasashii Uchuu Kaihatsu Nyuumon: Yabichishiki Fuyou! Supuutoniku kara Uchuu Suteeshon Kousou made やさしいうちゅうかいはつにゅうもん―よびちしきふよう! スプートニクからうちゅうステーションこうそうまで |
野田昌宏?のだまさひろ
Noda Masahiro |
| Special Award | ||
| --- No Award Given This Year ------- | ||
| * | ---- | |