Merchandise/Manga

Fubuki, Ganbarimasu!
艦隊これくしょん -艦これ- 4コマコミック 吹雪、がんばります! (Kantai Collection -KanColle- 4-koma Comic Fubuki, Ganbarimasu!)
 * Author: Momoi Ryouta
 * on Famitsu Comic Clear
 * Sponsor: DMM.com
 * Debuted: April 23, 2013
 * Volume 1 release: December 14, 2013
 * Purchasable on: Amazon.co.jp / CDJapan / YesAsia
 * Volume 2 release: April 14, 2014
 * Purchasable on: Amazon.co.jp / CDJapan / YesAsia
 * Volume 3 release: August 11, 2014
 * Purchasable on: Amazon.co.jp / CDJapan / YesAsia
 * Features most of the characters from the series, Fubuki Ise being the most prominent. Focuses on gags based on the original ships and in-game events.

Online

 * At Famitsu or ComicWalker
 * Scanlated on Bato.to
 * Latest chapter: 47 (Does not include chapter 41)
 * Shenanigans pass the Summer 2014 Event in chapter 43
 * Defunct wiki translating

Naval Base Communications
鎮守府通信 (Chinjufu tsuushin)
 * Author: Harada Shoutarou
 * on Famitsu Comic Clear
 * Sponsor: DMM.com
 * The Tenryuu Class & various ship girls will discuss the game. Updates irregularly. (parsed machine translation)

Online

 * At Famitsu

Someday in the Calm Seas
艦これ: いつか静かな海で (KanColle: Itsuka Shizukana Umi de)
 * Author: Saitoh Sakae
 * Writer: Tanaka Kensuke
 * on Monthly Comic Alive
 * Cooperator: C2 agency
 * Debuted: November 27, 2013
 * Volume 1 release: March 22, 2014
 * Purchasable on: Amazon.co.jp / CDJapan / YesAsia
 * A series of mini-arcs connecting a ship girl to her existing counterpart by gradually introducing ship girls & rotating the leads. Has the existing counterpart's profile at the arc's end.

Online

 * At ComicWalker
 * Scanlated on Bato.to
 * Latest chapter: 8
 * Hyuuga > Hibiki > Kongo > Souryuu > Chiyoda > Jintsuu

Torpedo Squadron Chronicle
水雷戦隊クロニクル (Suirai Sentai Chronicle)
 * Author: Miyama Yasuhiro
 * on Comp Ace
 * Debuted: November 2013
 * Volume 1 release: June 26, 2014
 * Purchasable on: Amazon.co.jp / CDJapan / YesAsia
 * Features the Akatsuki Class and Tenryuu Class as main characters. Follows the newly-assigned Tenryuu and her new squadron in solving the mystery of the Abyssal Fleet.
 * The Official Tenryuu Kindergarten Manga

Online

 * At ComicWalker

Nanodesu!
艦これ. なのです! (KanColle. Nanodesu!)
 * Author: Nanaroku ( Pixiv / Twitter )
 * on Age Premium
 * Debuted: January 2014
 * Volume 1 release: May 9, 2014
 * Purchasable on: Amazon.co.jp / CDJapan / YesAsia
 * Features Inazuma as the main character, along with the rest of her sister ships. The story focuses on Inazuma's conviction to spare the lives of her enemies if possible, as implied in her in-game lines. Takes place in a Venice-esque town.

The Whirlwind Girl Shimakaze
艦隊これくしょん -艦これ- 島風　つむじ風の少女 (Kantai Collection -KanColle- Shimakaze Tsumujikaze no Shoujo)
 * Author: Yamazaki Kazuma
 * on Dengeki Maoh
 * Debuted: February 2014
 * Volume 1 release: November 27, 2014
 * Purchasable on: Amazon.co.jp / CDJapan / YesAsia
 * A veteran teitoku guides a newly-assigned teitoku to handle newly-assigned Shimakaze & rookie Asashio integrate with the base &, eventually, engage the Abyssal Fleet. Cliches abound, though the other ship girls are more judiciously characterized.

Online

 * At ComicWalker
 * Scanlated on Bato.to
 * Latest translated chapter: 10

The Perched Naval Base
艦隊これくしょん -艦これ- 止まり木の鎮守府 (Kantai Collection -KanColle- Tomarigi no Chinjufu)
 * Author: Hiroichi
 * on Dengeki Daioh
 * Debuted: May 2014
 * Volume 1 release: December 20, 2014
 * Purchasable on: Amazon.co.jp / CDJapan
 * A gradual increase in ship girls who help Suzuya acclimate newly-assigned Kumano to the base & its quirks. Has a profile for ship girls at the chapter's end.

Online

 * At ComicWalker
 * Scanlated on Bato.to
 * Latest translated chapter: 5
 * Kumano > Agano & Noshiro > Tone Class > Yamato > Abukuma

Kancolle Play Manga: Kankan Biyori
艦これプレイ漫画 艦々日和 (KanColle Purei Manga Kankan Biyori)
 * Author: Mizumoto Tadashi ( Website / Twitter )
 * on ?
 * Volume 1 release: March 24, 2014
 * Purchasable on: Amazon.co.jp / CDJapan / YesAsia
 * Volume 2 release: October 17, 2014
 * Purchasable on: Amazon.co.jp
 * The author's report manga, retelling his own progress within the game in a comedic & episodic fashion. The author's self-insert is portrayed as a yellow penguin(?) stationed at Nansei-shoto.

Online

 * At ComicWalker

Yuru's Warship ~ Female Admiral's Play Diary
ゆる艦～女提督プレイ日記～ (Yuru-kan ~ Onna Teitoku Play Nikki)
 * Author: Nishifuji Sasame? (仁藤 砂雨)
 * Illustrations: Wakui Souta
 * A confusion-filled start of a newly-assigned female admiral. Inazuma will teach & support the useless admiral. (parsed machine translation)
 * A confusion-filled start of a newly-assigned female admiral. Inazuma will teach & support the useless admiral. (parsed machine translation)

Online

 * At ComicWalker

Yokosuka Naval Base
艦隊これくしょん -艦これ- アンソロジーコミック 横須賀鎮守府 (Kantai Collection -KanColle- Anthology Comic Yokosuka Chinjufu)
 * by Comic Clear Editorial Department
 * Volume 1 release: September 14, 2013
 * Purchasable on: Amazon.co.jp / CDJapan / YesAsia
 * Volume 2 release: November 15, 2013
 * Purchasable on: Amazon.co.jp / CDJapan
 * Volume 3 release: January 14, 2014
 * Purchasable on: Amazon.co.jp / CDJapan
 * Volume 4 release: March 15, 2014
 * Purchasable on: Amazon.co.jp / CDJapan / YesAsia
 * Volume 5 release: May 15, 2014
 * Purchasable on: Amazon.co.jp / CDJapan / YesAsia
 * Volume 6 release: July 15, 2014
 * Purchasable on: Amazon.co.jp / CDJapan / YesAsia
 * Volume 7 release: September 13, 2014
 * Purchasable on: Amazon.co.jp / CDJapan
 * Volume 8 release: November 15, 2014
 * Purchasable on: Amazon.co.jp / CDJapan / YesAsia
 * Slice-of-life shenanigans

Online

 * Scanlated on Bato.to
 * Latest translated chapter: 16

Maizuru Naval Base
艦隊これくしょん -艦これ- コミックアラカルト 舞鶴鎮守府編 (Kantai Collection -KanColle- Comic a la Carte Maizuru Chinjufu)
 * by Kadokawa Games
 * Additionally: Comptiq Editorial Department
 * Volume 1 release: November 26, 2013
 * Purchasable on: Amazon.co.jp / CDJapan / YesAsia
 * Volume 2 release: December 6, 2013
 * Purchasable on: Amazon.co.jp / CDJapan / YesAsia
 * Volume 3 release: February 26, 2014
 * Purchasable on: Amazon.co.jp / CDJapan
 * Volume 4 release: April 26, 2014
 * Purchasable on: Amazon.co.jp / CDJapan / YesAsia
 * Volume 5 release: August 9, 2014
 * Purchasable on: Amazon.co.jp / CDJapan / YesAsia
 * Volume 6 release: November 10, 2014
 * Purchasable on: Amazon.co.jp / YesAsia
 * Slice-of-life shenanigans

Online

 * Scanlated on Bato.to
 * Latest translated chapter: 1 & 6
 * Aviation Destroyer Shimakaze ktkr!!!!

Sasebo Naval Base
艦隊これくしょん ‐艦これ‐ 電撃コミックアンソロジー　佐世保鎮守府編(Kantai Collection -KanColle- Dengeki Comic Anthology Sasebo Chinjufu)
 * Authors: Hisasi (1,3), Suemitsu Jikka (1), saxyun (1,3) Koume Kate (2), ReDrop (2), nylon (2), Sakazaki Freddie (3,4), Sekiya Asami (4), Imai Tetsuya (4), others (3,4)
 * Cooperation: Tanaka Kensuke KanColle development & management
 * Volume 1 release: November 26, 2013
 * Purchasable on: Amazon.co.jp / CDJapan
 * Volume 2 release: January 27, 2014
 * Purchasable on: Amazon.co.jp / CDJapan
 * Volume 3 release: April 26, 2014
 * Purchasable on: Amazon.co.jp / CDJapan
 * Volume 4 release: July 26, 2014
 * Purchasable on: Amazon.co.jp / CDJapan / YesAsia
 * Volume 5 release: October 27, 2014
 * Purchasable on: Amazon.co.jp / CDJapan
 * Slice-of-life shenanigans

Advice for Naval Base Life [attempted translation]
艦隊これくしょん －艦これ－ 鎮守府生活のすゝめ (Kantai Collection -KanColle- Chinjufu Seikatsu no Susume)
 * by Tech Giant Editorial Department
 * Volume 1 release: September 30, 2013
 * Volume 2 release: December 6, 2013
 * Volume 3 release: April 28, 2014
 * Volume 4 release: September 26, 2014

KanColle - Anthology

 * by DNA Media Comics
 * Release: October 26, 2013
 * Purchasable on: Amazon.co.jp / CDJapan / YesAsia

Kure Naval Base

 * Someday, someday