- Kaela Lv 1
- Kali
- Kanhel Lv 1550Boss
- Kazgoros, the eldest brother Lv 60Boss
- Kazkiros, the youngest brother Lv 60Boss
- Kazkros, the middle brother Lv 60Boss
- Keeper God of Ancient Treasures Lv 600Boss
- Kerberos Lv 1100Boss
- King Kraken Lv 1450Boss
- King Talman Lv 530
- King of Ancient Tree Spirits Lv 1550Boss
- King of Desert Storm Spirits Lv 450Boss
- King of Skeletons Lv 49Boss
- King of Tree Spirits Lv 40Boss
- Kirke Lv 450Boss
- Kirke's Wife Lv 65
- Knight Captain Christina Lv 850Boss
- Knight Captain of Light Lv 1000Boss
- Knight of Abyss Lv 1420
- Knight of Arctic Frost Lv 64
- Knight of Light Lv 1100Boss
- Kogard Lv 1
- Kraken Lv 750Boss
- Krieg Lv 850Boss
- Kseidon Lv 85Boss
- Kseidon of Abandoned Mine Lv 60Boss
- Kunta Lv 1
- Kute Lv 68
A-Z index