 Kwama Miner | Morrowind / Quests | 10 |
 Kyne's Aegis Conqueror | Trials / Kyne's Aegis | 10 |
 Kyne's Aegis Sprinter | Trials / Kyne's Aegis | 50 |
 Kyne's Aegis Vanquisher | Trials / Kyne's Aegis | 10 |
 Kyne's Deliverance | Trials / Kyne's Aegis | 50 |
 Labyrinthian Conqueror | Greymoor / Exploration | 50 |
 Labyrinthian Group Event | Greymoor / Exploration | 50 |
 Lackluster | DLC Dungeons / Depths of Malatar | 10 |
 Lady Llarel's Shelter Explorer | Exploration / Ebonheart Pact | 10 |
 Lady's Smock | Crafting / Alchemy | 5 |
 Lair Locator | Dragonhold / Quests | 10 |
 Lair of Maarselok Challenger | DLC Dungeons / Lair of Maarselok | 50 |
 Lair of Maarselok Conqueror | DLC Dungeons / Lair of Maarselok | 10 |
 Lair of Maarselok Vanquisher | DLC Dungeons / Lair of Maarselok | 10 |
| Lair of the Black Worm Explorer | Solstice / Exploration | 5 |
 Land Baron | Housing / Property | 50 |
 Land of Gears and Cogs | Clockwork City / Quests | 10 |
 Land, Air, and Sea Supremacy | DLC Dungeons / Coral Aerie | 50 |
| Landlord | Housing / Property | 15 |
| Landowner | Housing / Property | 10 |
 Last-Second Sundering | DLC Dungeons / Unhallowed Grave | 10 |
 Lava Foot Shuffle | Holiday Events / New Life Festival | 5 |
 Lava Lasher | High Isle / Volcanic Vents | 10 |
 Leading the Charge | Infinite Archive / General | 50 |
 Leads Chaser | Greymoor / Antiquities | 10 |
 Leads Discoverer | Greymoor / Antiquities | 5 |
 Leads Master Investigator | Greymoor / Antiquities | 15 |
 Learn a Jewelry Trait | Crafting / General | 5 |
| Learn a Trait | Crafting / General | 5 |
 Learn the Nirnhoned Trait | Crafting / General | 5 |
 Leave No Bone Unbroken | DLC Dungeons / Fang Lair | 50 |
 Leave No Ghosts | DLC Dungeons / Exiled Redoubt | 50 |
 Leave No Stash Behind | Thieves Guild / Exploration | 15 |
 Leaves on the Wind | Dragonhold / Quests | 10 |
 Lefthander's Aegis Belt | High Isle / Antiquities | 15 |
 Leftwheal Conqueror | Gold Road / Exploration | 50 |
 Legacy Slayer | Dragonhold / Exploration | 10 |
 Legendary Blacksmith | Crafting / Blacksmithing | 50 |
 Legendary Clothier | Crafting / Clothier | 50 |
 Legendary Jewelry Crafter | Crafting / Jewelry Crafting | 50 |
 Legendary Woodworker | Crafting / Woodworking | 50 |
 Legerdemain Skill Master | Character / Justice | 50 |
| Legion's Rest Explorer | Gold Road / Exploration | 5 |
 Lep Seclusa Challenger | DLC Dungeons / Lep Seclusa | 50 |
 Lep Seclusa Champion | DLC Dungeons / Lep Seclusa | 50 |
 Lep Seclusa Conqueror | DLC Dungeons / Lep Seclusa | 10 |
 Lep Seclusa Vanquisher | DLC Dungeons / Lep Seclusa | 10 |
 Let Bygones Be Bygones | DLC Dungeons / Fang Lair | 50 |
 Let Sleeping Gargoyles Lie | DLC Dungeons / Castle Thorn | 10 |
 Level 10 Hero | Character / General | 10 |