| Title | Format | Country | Volumes | State |
|---|---|---|---|---|
| Kageki Shōjo!かげきしょうじょ！ | Manga | Japan | 2 | Completed |
| Kageki Shojo!! Saison Zéro | Manga | France | 1 | Completed |
| Kageki Shōjo!! Season zeroかげきしょうじょ！！ シーズンゼロ | Manga | Japan | 1 | Completed |
| Kakegurui賭ケグルイ | Manga | Japan | 13 | Ongoing |
| Kamikaze | Manga | France | 7 | Completed |
| Kamunagara | Manga | France | 11 | Completed |
| Kanata Kakeruかなたかける | Manga | Japan | 6 | Ongoing |
| Kanojo no Hitori Gurai彼女のひとりぐらし | Manga | Japan | 3 | Completed |
| KA・SI・MA・SI ~Girl Meets Girl~かしまし 〜ガール・ミーツ・ガール〜 | Manga | Japan | 5 | Completed |
| Kazan | Manga | France | 7 | Completed |
| Ki-oon Mag | Magazine of manga | France | 2 | Ongoing |
| Kid I Luck ! | Manga | France | 3 | Completed |
| King's Game | Light novel | France | 1 | Ongoing |
| Kings of Shôgi ~The Flowers of Hard Blood~ | Manga | France | 8 | Completed |
| Knights of Sidonia | Manga | France | 15 | Completed |
| Kodomo no Jikanこどものじかん | Manga | Japan | 13 | Completed |
| Kodomo no Jikan ~Hōkago~こどものじかん～ほうかご～ | Manga | Japan | 1 | Completed |
| Koi ni Ame Agari no Yō ni恋は雨上がりのように | Manga | Japan | 10 | Completed |
| Kokoro Connect | Manga | United States | 5 | Completed |
| Kokoro-Connectココロコネクト | Manga | Japan | 5 | Completed |
| Kui Ryūko Sakuhin Shū ~Ryū no Kawaii Nanatsu no Ko~九井諒子作品集～竜のかわいい七つの子～ | Manga | Japan | 1 | Completed |
| Kuro | Manga | France | 1 | Ongoing |
| kuro黒─kuro─ | Manga | Japan | 3 | Completed |
| Kurokami ~Black God~ | Manga | France | 19 | Completed |
| Kuroko's basket | Manga | France | 30 | Ongoing |
| Kurosagi ~livraison de cadavres~ | Manga | France | 21 | Unknown |
| Kurosagi shitai takuhaibin黒鷺死体宅配便 | Manga | Japan | 23 | Ongoing |
| Kusuriya no Hitorigoto薬屋のひとりごと | Manga | Japan | 9 | Ongoing |
| Kyōki no Sanmyaku nite ~Lovecraft Kessaku-shū~狂気の山脈にて～ラヴクラフト傑作集～ | Manga | Japan | 4 | Completed |