 Irina | 1 | 1/4,096 |
 Iron dragon (Standard) | 1 | 1/309.13 |
| Iron rocks | 1 | 16/32,768 |
| Jelly | 1 | 1/256 |
| Jelly (Wilderness Slayer Cave) | 1 | 1/102.4 |
 Jennella | 1 | 1/4,096 |
 Jogre (Normal) | 1 | 1/1,032 |
 Joseph | 1 | 1/4,096 |
 Jungle horror (Worker) | 1 | 1/1,032 |
 Juvenile custodian stalker | 1 | 1/207.92 |
 K'ril Tsutsaroth | 1 | 1/312.62 |
 Kalphite Guardian | 1 | 1/198.59 |
 Kalphite Queen (Crawling) | 25 | 3/126 |
| Kalphite Queen (Crawling) | 1 | 1/6,451.2 |
 Kalphite Soldier (Kalphite Lair) | 1 | 1/256 |
 Kalphite Worker | 1 | 1/512 |
 Killerwatt (Idle) | 1 | 1/224 |
 King Black Dragon | 1 | 1/315.08 |
 King Bolren | 3–5 | 10/128 |
 King kurask | 1 | 1/165.33, 3 rolls |
 King Sand Crab (Active) | 1 | 1/1,024 |
 Kraka | 1 | 1/204.8 |
 Kraken (Kraken) | 1 | 1/512 |
 Kree'arra | 1 | 1/312.62 |
 Ksenia | 1 | 1/4,096 |
 Kurask (Normal) | 1 | 1/165.33 |
 Lanzig | 1 | 1/4,096 |
 Lava dragon | 1 | 1/187.25 |
| Lead rocks | 1 | 16/32,768 |
 Lensa | 1 | 1/4,096 |
| Lesser demon (Regular) | 1 | 1/256 |
| Lesser demon (Wilderness Slayer Cave) | 1 | 1/62.4 |
 Lev | 1 | 1/4,096 |
 Lieutenant Schepbur | 3–5 | 10/128 |
 Liliya | 1 | 1/4,096 |
| Limestone rock | 1 | 16/32,768 |
 Lizard | 1 | 1/170.67 |
 Lizardman shaman (Standard) | 1 | 1/1,280 |
 Lobstrosity | 1 | 1/314.67 |
 Locust rider (Ranger) | 1 | 1/67.56 |
| Lovakite rocks | 1 | 16/32,768 |
 Mad Angel (Post-quest) | 1 | 1/3,840 |
 Mammoth (Normal) | 1 | 1/309.13 |
 Marble gargoyle | 1 | 1/204.8, 3 rolls |
 Market Guard | 1 | 1/1,024 |
 Mature custodian stalker | 1 | 1/139.05 |
 Milla | 1 | 1/4,096 |
 Mind Golem (Golem) | 1 | 2/52 |