 Imperial Warbear Seeker | Player VS Player / General | 50 |
 Impervious Onslaught | DLC Dungeons / Castle Thorn | 50 |
| In Defiance of Death | DLC Dungeons / Unhallowed Grave | 50 |
 In Shipshape | DLC Dungeons / Shipwright's Regret | 50 |
 Indecent Exposure | Character / Justice | 10 |
 Indeko Discoverer | Crafting / Enchanting | 10 |
 Indomitable Adventurer | Quests / General | 15 |
 Infectious Beliefs | DLC Dungeons / Bal Sunnar | 10 |
 Infiltrating the New Moon | Dragonhold / Quests | 10 |
 Infinite Arc's End | Infinite Archive / Exploration | 50 |
 Infinite Archive Challenger | Infinite Archive / General | 50 |
 Infinite Archive Conqueror | Infinite Archive / Exploration | 50 |
 Infinite Archive Vanquisher | Infinite Archive / Exploration | 10 |
 Infinite Avenger | Infinite Archive / Exploration | 15 |
 Infinite Camaraderie | Infinite Archive / General | 10 |
 Infinite Defender | Infinite Archive / Exploration | 10 |
 Infinite Endurance | Infinite Archive / Exploration | 10 |
 Infinite Plunderer | Holiday Events / Witches Festival | 10 |
 Infinitely Versed | Infinite Archive / General | 50 |
 Inflammable | DLC Dungeons / Scrivener's Hall | 50 |
 Inheritor of the Scholarium | Character / Scribing | 50 |
 Inhospitable | Trials / Dreadsail Reef | 10 |
 Ink Accumulator | Character / Scribing | 10 |
 Ink Acquirer | Character / Scribing | 5 |
 Ink Amasser | Character / Scribing | 15 |
 Ink-Stained Fingers | Character / Scribing | 5 |
 Inner Sea Armature Explorer | Exploration / Ebonheart Pact | 10 |
 Interplanar Cohesion | Trials / Lucent Citadel | 10 |
| Intrepid Wanderer | Night Market / Quests | 10 |
 Invaders' Bane | DLC Dungeons / Earthen Root Enclave | 50 |
 Inventor of Adventure | High Isle / Exploration | 5 |
 Ire of the Storm | DLC Dungeons / White Gold Tower | 50 |
 Iron Wheel Infiltration | Thieves Guild / Quests | 10 |
 Isobel's Companion | High Isle / Companions | 10 |
 Isobel's Favor | High Isle / Companions | 10 |
 It is as the Scrolls Foretold | Recent Seasons / Challenge Difficulty | 50 |
 It's an Investment | Infinite Archive / General | 15 |
 Ivory Brigade Style Master | Blackwood / General | 50 |
| Jamming Session | DLC Dungeons / Naj-Caldeesh | 10 |
 Jester's Festival Joke Popper | Holiday Events / Jester's Festival | 5 |
 Jester's Personal Chef | Holiday Events / Jester's Festival | 10 |
 Jewelry Crafter | Crafting / Jewelry Crafting | 5 |
 Jewelry Trait Master | Crafting / General | 15 |
| Jode's Light Explorer | Exploration / Aldmeri Dominion | 10 |
| Joining the Market | Night Market / Quests | 10 |
| Journey of the Heart | Holiday Events / Hearts Week | 15 |
 Journeyman Crafting Harvester | Crafting / General | 5 |
| Journeyman Decorator | Housing / Decorating | 5 |
 Jubilee Cake Slice 2016-2018 | Holiday Events / Anniversary Jubilee | 5 |
 Jubilee Cake Slice 2019 | Holiday Events / Anniversary Jubilee | 5 |