| A House | | 山村 浩二 | 1993 | 5 分 | Nippon Digital | 2004 |
| A Hundred Flowers | 百花 | 川村元気 | 2022 | 104 分 | Nippon Cinema | 2023 |
| A Japanese Boy Who Draws | ある日本の絵描き少年 | Masanao KAWAJIRI | 2018 | 20 分 | Nippon Visions | 2019 |
| A Kid On The Alley of 3-2 Kyojima | | 帯谷有理 | 2001 | 18 分 | Nippon Digital | 2002 |
| A Labyrinth Of Residence | | Nasuka SAITO | 2008 | 4:59 分 | Nippon Digital | 2010 |
| A Laughing Frog | | 平山秀幸 | 2002 | 96 分 | Nippon Cinema | 2004 |
| A Letter To Momo | ももへの手紙 | Hiroyuki OKIURA | 2011 | 120 分 | Nippon Animation | 2013 |
| A Life Turned Upside Down: My Dad's An Alcoholic | 酔うと化け物になる父がつらい | 片桐健滋 | 2019 | 95 分 | Nippon Cinema | 2020 |
| A Little Girl's Dream | 夢は牛のお医者さん | Yoshiaki TOKITA | 2014 | 86 分 | Nippon Visions | 2015 |
| A Little Journey | | Renzo KINOSHITA | 1994 | 13 分 | Nippon Retro | 2008 |
| A Long Dream | | Hoji TSUCHIYA | 2016 | 2:40 分 | Nippon Animation | 2018 |
| A Lover’s Discourse | 恋愛ディスクール | Wen PANG | 2023 | 14 分 | Nippon Animation | 2024 |
| A Lullaby Under The Nuclear Sky | 抱く {HUG} | Tomoko KANA | 2014 | 69 分 | Nippon Visions | 2016 |
| A Lunch Box | | Shinji IMAOKA | 2004 | 92 分 | Nippon Cinema | 2004 |
| A Madder Red | 茜色に焼かれる | 石井裕也 | 2021 | 144 分 | Nippon Cinema | 2022 |
| A Man Who Became An Undertaker | | Shuhei SIBUE | 2006 | 4:55 分 | Nippon Digital | 2007 |
| a manhole | | ANCHOVY, Masaharu HASEGAWA | 2005 | 1 分 | Nippon Digital | 2006 |
| A Maze | | Kei TAKAHASHI | 2007 | 17:59 分 | Nippon Digital | 2008 |
| A Mother In Tears Takes A Child On Her Lap | | Kentaro KISHI | 2017 | 10:01 分 | Nippon Visions | 2019 |
| A Nameless Day | | Takaharu SHIMIZU | 2012 | 4 分 | Nippon Visions | 2014 |
