 Loop Eradicator | Morrowind / Exploration | 5 |
 Loose Ends | Thieves Guild / Quests | 10 |
 Loot Cleaner | Character / Justice | 5 |
 Loot Sanitizer | Character / Justice | 10 |
 Loot the Landing | Thieves Guild / Exploration | 15 |
 Lord | Housing / Property | 50 |
 Lord of Misrule | Holiday Events / Jester's Festival | 5 |
| Lord of Suffering | Trials / Ossein Cage | 50 |
 Lord Warden's Retaliation | DLC Dungeons / Imperial City Prison | 50 |
 Lost City Conqueror | Exploration / Public Dungeons | 50 |
 Lost City Vanquisher | Exploration / Public Dungeons | 10 |
| Lost Depths Delver | DLC Dungeons / General | 50 |
| Lost Depths Explorer | DLC Dungeons / General | 5 |
| Lost Depths Scout | DLC Dungeons / General | 10 |
 Lost in the Wilds | Blackwood / Exploration | 10 |
 Loth'Na Caverns Explorer | Exploration / Craglorn | 10 |
 Lothid Clan Liberator | Markarth / Quests | 10 |
| Lower Bthanual Explorer | Exploration / Ebonheart Pact | 10 |
| Lower Craglorn Cave Delver | Exploration / Craglorn | 15 |
| Lower Craglorn Master Explorer | Exploration / Craglorn | 50 |
 Lower Craglorn Pathfinder | Exploration / Craglorn | 5 |
 Lower Craglorn Skyshards | Character / Skyshards | 15 |
 Lucent Citadel Conqueror | Trials / Lucent Citadel | 10 |
 Lucent Citadel Vanquisher | Trials / Lucent Citadel | 10 |
 Lucent Dremora Slayer | Trials / Lucent Citadel | 10 |
 Lucent Sentinel Style Master | Trials / Lucent Citadel | 50 |
 Lucid Dreaming | Trials / Sanity's Edge | 50 |
 Lucky Seven | Orsinium / Quests | 10 |
 Luminous Russula | Crafting / Alchemy | 5 |
 Lurcher and Graft-Root Slayer | DLC Dungeons / Earthen Root Enclave | 10 |
 Lurcher Liquidator | DLC Dungeons / Shipwright's Regret | 10 |
 Lustrous Metal Finder | Crafting / Jewelry Crafting | 10 |
 Lycanthropy | Character / Werewolf | 10 |
 Lycanthropy Master | Character / Werewolf | 50 |
 Lyranth's Liaison | Deadlands / Prologue | 10 |
 Mabrigash Shade Destroyer | Exploration / Ebonheart Pact | 5 |
| Mad God's Dancing Shoes | Solstice / Antiquities | 15 |
| Madness Catcher | Recent Seasons / Quests | 50 |
| Madness Chaser | Recent Seasons / Quests | 10 |
 Maelstrom Arena Champion | Arenas / Maelstrom Arena | 15 |
 Maelstrom Arena Conqueror | Arenas / Maelstrom Arena | 50 |
 Maelstrom Arena: Perfect Run | Arenas / Maelstrom Arena | 50 |
 Maelstrom's Lockpick | DLC Dungeons / Bedlam Veil | 10 |
 Mage Protector | Trials / Sanity's Edge | 15 |
 Mages Guild Skill Apprentice | Character / Guilds | 50 |
 Mages Guild Skill Master | Character / Guilds | 50 |
 Magma Masher | DLC Dungeons / Bloodroot Forge | 10 |
 Magnanimous Magnate | Thieves Guild / Exploration | 50 |
 Magnastylus in the Making | DLC Dungeons / Scrivener's Hall | 50 |
 Maj's Cohort | Dungeons / General | 50 |