Kaare Andrews Interlocking Party Variant Cover (2018)
The Kamchatkan Konspiracy (1991)
Kang War II (1975-2019)
Keemia's Castle (2010-2019)
Keep Your Friends Close (2018)
Keepsake (1993)
The Kids Are Alright (2008)
1/3NYX: No Way Home 1.FT (2008/10)
2/3NYX: No Way Home 2.FT (2008/11)
3/3NYX: No Way Home 3.FT (2008/12)
Kill Matsu'o (2010)
1/4Psylocke 1.1 (2010/01)
...X-Men: Psylocke (TPB) 1.1 (2010/07)
2/4Psylocke 2.1 (2010/02)
...X-Men: Psylocke (TPB) 1.2 (2010/07)
3/4Psylocke 3.1 (2010/03)
...X-Men: Psylocke (TPB) 1.3 (2010/07)
4/4Psylocke 4.1 (2010/04)
...X-Men: Psylocke (TPB) 1.4 (2010/07)
Kill or Cure (2008-2010)
Killable (2013-2014)
1/6Wolverine (VI) 8.1 (2013/10)
...Wolverine TPB (III) 2.2 (2014/05)
2/6Wolverine (VI) 9.1 (2013/11)
...Wolverine TPB (III) 2.3 (2014/05)
3/6Wolverine (VI) 10.1 (2013/12)
...Wolverine TPB (III) 2.4 (2014/05)
4/6Wolverine (VI) 11.1 (2014/01)
...Wolverine TPB (III) 2.5 (2014/05)
5/6Wolverine (VI) 12.1 (2014/02)
...Wolverine TPB (III) 2.6 (2014/05)
6/6Wolverine (VI) 13.1 (2014/03)
...Wolverine TPB (III) 2.7 (2014/05)
Killed in Action (2008-2017)
Killed, Not Dead (2010-2011)
Killer Instinct (2018)
1/6Domino (III) 1.1 (2018/06)
...Domino TPB (II) 1.1 (2018/12)
2/6Domino (III) 2.1 (2018/07)
...Domino TPB (II) 1.2 (2018/12)
3/6Domino (III) 3.1 (2018/08)
...Domino TPB (II) 1.3 (2018/12)
4/6Domino (III) 4.1 (2018/09)
...Domino TPB (II) 1.4 (2018/12)
5/6Domino (III) 5.1 (2018/10)
...Domino TPB (II) 1.5 (2018/12)
6/6Domino (III) 6.1 (2018/11)
...Domino TPB (II) 1.6 (2018/12)
Killer Instincts (2007-2017)
A Killer of a Love Story (1994-1995)
1/4Nightmare 1.1 (1994/12)
2/4Nightmare 2.1 (1995/01)
3/4Nightmare 3.1 (1995/02)
4/4Nightmare 4.1 (1995/03)
The Killing Dream (2010-2016)
The Killing Field (1994-2019)
Killing Ground (1992)
The Killing Season (2005-2007)
The Killing Stroke (1991-2018)
King Hyperion (2004-2010)
King Leon (1992-1993)
1/3A1 2.5 (1992)
2/3A1 3.5 (1993)
3/3A1 4.1 (1993)
[King of Fang and Claw] (1939-2019)

Details  

Quote from Wikipedia.com:
"...Ka-Zar the Great, who first appeared in the pulp magazine Ka-Zar #1 (Oct. 1936) from Manvis Publishing, one of many magazine companies owned by Martin Goodman. Writer-artist Ben Thompson adapted the pulp story "King of Fang and Claw" by Bob Byrd for Goodman's first comic book, Marvel Comics #1 (Oct. 1939)"
More details about Ka-Zar's pre-Marvel days can be found on Don Markstein's Toonopedia.

 
The King of Hell's Kitchen (2004-2010)
King of Nothing (2018-2019)
King of the Savage Land (2011-2012)
Kingbreaker (2009-2016)
Kingdom on an Island of the Apes (1975)
Kingpin (2010-2018)
Kingpin Interlocking Variant Cover (2017)
The Kingpin of Wakanda (2012-2018)
Kingpins of New York (2017-2018)
1/5Defenders (V) 6.1 (2017/12)
...Defenders TPB 2.1 (2018/07)
2/5Defenders (V) 7.1 (2018/01)
...Defenders TPB 2.3 (2018/07)
3/5Defenders (V) 8.1 (2018/02)
...Defenders TPB 2.4 (2018/07)
4/5Defenders (V) 9.1 (2018/03)
...Defenders TPB 2.5 (2018/07)
5/5Defenders (V) 10.1 (2018/04)
...Defenders TPB 2.6 (2018/07)
Kings and Queens (2018)
1/2X-Men: Blue 31.1 (2018/09)
...X-Men TPB: Blue 5.3 (2018/12)
2/2X-Men: Blue 32.1 (2018/09)
...X-Men TPB: Blue 5.4 (2018/12)
Kings of Pain (1991-2018)
Kings of the Night (1979-2010)
Kirby 100th Anniversary Variant Cover (2017-2018)
Kirby Monster Variant Cover (2015-2016)
House of M (II) 3.CV (2015/11)Fin Fang Foom (Strange Tales (I) #89)
A-Force (I) 5.CV (2015/12)Ulvar (Journey into Mystery (I) #63)
All-New, All-Different Point One 1.CV (2015/12)Nezarr, the Calculator (The Eternals (I) #7)
The Amazing Spider-Man (V) 2.CV (2015/12)Infant Terrible (Fantastic Four (I) #24)
The Astonishing Ant-Man 1.CV (2015/12)Scarlet Beetle (Tales to Astonish (I) #39)
Avengers (VII) 0.CV (2015/12)Devil Dinosaur (Devil Dinosaur #1)
Captain America: Sam Wilson 2.CV (2015/12)Zetora (Journey into Mystery (I) #57)
Captain America: White 3.CV (2015/12)Jinni Demon (Thor (I) #137)
Civil War (II) 5.CV (2015/12)Lo-Karr, Bringer of Doom (Journey into Mystery (I) #75)
Contest of Champions (III) 1.CV (2015/12)Xemnu the Titan (Journey into Mystery (I) #62)
Doctor Strange (IV) 1.CV (2015/12)Awesome Android (Fantastic Four (I) #15)
Groot 5.CV (2015/12)Quonian (Fantastic Four (I) #97)
Guardians of the Galaxy (IV) 1.CV (2015/12)Groot (Tales to Astonish (I) #13)
House of M (II) 4.CV (2015/12)Kraa the Unhuman (Tales of Suspense (I) #18)
Howling Commandos of S.H.I.E.L.D. 1.CV (2015/12)Orrgo (Strange Tales (I) #90)
Invincible Iron Man (VIII) 2.CV (2015/12)Fin Fang Foom (Strange Tales (I) #89)
Karnak 1.CV (2015/12)Rommbu (Tales to Astonish (I) #19)
Ms. Marvel (III) 19.CV (2015/12)Wrecker’s Robot (Fantastic Four (I) #12)
New Avengers (IV) 2.CV (2015/12)The Blip (Tales to Astonish (I) #15)
S.H.I.E.L.D. (III) 11.CV (2015/12)Poker Face (Strange Tales of the Unusual #7)
Spider-Gwen (II) 1.CV (2015/12)Hypno-Creature (Tales of Suspense (I) #23)
Spider-Man 2099 (III) 2.CV (2015/12)The Crawling Creature (Tales to Astonish (I) #22)
The Unbeatable Squirrel Girl (II) 1.CV (2015/12)Thorr (Tales to Astonish (I) #16)
Uncanny Avengers (III) 1.CV (2015/12)Mangog (Thor (I) #154)
Uncanny Inhumans 1.CV (2015/12)Vandoom’s Monster (Tales to Astonish (I) #17)
All-New, All-Different Avengers 1.CV (2016/01)Googam
All-New Hawkeye (II) 1.CV (2016/01)Elektro (Tales of Suspense (I) #13)
Extraordinary X-Men 2.CV (2016/01)Yeti (The Black Panther (I) #5)
Illuminati 1.CV (2016/01)Monster at the Window; Recolored version of the cover of Tales to Astonish (I) #34
All-New X-Men (II) 1.CV (2016/02)
Kiss or Kill (2010-2011)
Kiss Today Goodbye (2013-2016)
Kitchen Irish (2004-2018)
The Kith Triology (2000)
Klaw Stands Supreme (2017-2019)
Knights of Suffering (2007-2017)
Knights of the Old Republic: War (2012-2019)
Know Fear (2019)
Knowhere (2008-2018)
The Korvac Quest (1991-2018)
Kraven's First Hunt (2008-2016)
Kraven's Last Hunt (1987-2019)
1/6Web of Spider-Man (I) 31.1 (1987/10)
...Spider-Man TPB: Kraven's Last Hunt 1.1 (1990)
...Spider-Man Premiere (HC): Kraven's Last Hunt 1.1 (2006/10)
...Spider-Man: With Great Power Comes Great Responsibility 5.1 (2011/10)
...Essential Web of Spider-Man 2.13 (2012/09)
...Amazing Spider-Man Epic Collection TPB 17.12 (2017/07)
...Spider-Man Deluxe Edition (HC): Kraven's Last Hunt 1.4 (2018/06)
...Marvel's Greatest Creators: Spider-Man - Kraven's Last Hunt 1.1 (2019/07)
2/6The Amazing Spider-Man (I) 293.1 (1987/10)
...Spider-Man TPB: Kraven's Last Hunt 1.2 (1990)
...Spider-Man Premiere (HC): Kraven's Last Hunt 1.2 (2006/10)
...Essential Web of Spider-Man 2.16 (2012/09)
...Amazing Spider-Man Epic Collection TPB 17.5 (2017/07)
...Spider-Man Deluxe Edition (HC): Kraven's Last Hunt 1.2 (2018/06)
3/6Peter Parker, the Spectacular Spider-Man (I) 131.1 (1987/10)
...Spider-Man TPB: Kraven's Last Hunt 1.3 (1990)
...Spider-Man Premiere (HC): Kraven's Last Hunt 1.3 (2006/10)
...Essential Web of Spider-Man 2.18 (2012/09)
...Amazing Spider-Man Epic Collection TPB 17.14 (2017/07)
...Spider-Man Deluxe Edition (HC): Kraven's Last Hunt 1.6 (2018/06)
4/6Web of Spider-Man (I) 32.1 (1987/11)
...Spider-Man TPB: Kraven's Last Hunt 1.4 (1990)
...Spider-Man Premiere (HC): Kraven's Last Hunt 1.4 (2006/10)
...Essential Web of Spider-Man 2.14 (2012/09)
...Amazing Spider-Man Epic Collection TPB 17.13 (2017/07)
...Spider-Man Deluxe Edition (HC): Kraven's Last Hunt 1.5 (2018/06)
5/6The Amazing Spider-Man (I) 294.1 (1987/11)
...Spider-Man TPB: Kraven's Last Hunt 1.5 (1990)
...Spider-Man Premiere (HC): Kraven's Last Hunt 1.5 (2006/10)
...Essential Web of Spider-Man 2.17 (2012/09)
...Amazing Spider-Man Epic Collection TPB 17.6 (2017/07)
...Spider-Man Deluxe Edition (HC): Kraven's Last Hunt 1.3 (2018/06)
6/6Peter Parker, the Spectacular Spider-Man (I) 132.1 (1987/11)
...Spider-Man TPB: Kraven's Last Hunt 1.6 (1990)
...Spider-Man Premiere (HC): Kraven's Last Hunt 1.6 (2006/10)
...Essential Web of Spider-Man 2.19 (2012/09)
...Amazing Spider-Man Epic Collection TPB 17.15 (2017/07)
...Spider-Man Deluxe Edition (HC): Kraven's Last Hunt 1.7 (2018/06)
Kraven's Next Hunt (2011)