 Butterfly Wing | Crafting / Alchemy | 5 |
 By the Will of the Green | Firesong / Tales of Tribute | 5 |
| Bygone Bounty | Greymoor / Antiquities | 15 |
| Cadaver Crunch | DLC Dungeons / Naj-Caldeesh | 10 |
 Cadaverous Crusader | Infinite Archive / Exploration | 15 |
 Cake Devourer | Holiday Events / Anniversary Jubilee | 50 |
| Calamitous Sated | Night Market / Bosses | 15 |
| Calamitous Silenced | Night Market / Bosses | 15 |
| Calamitous Squasher | Night Market / Bosses | 15 |
| Calamity Averted | Night Market / Bosses | 50 |
 Caledonia Called Out | Gold Road / Tales of Tribute | 15 |
| Calindvale Gardens Conqueror | Solstice / Exploration | 50 |
| Calindvale Gardens Group Event | Solstice / Exploration | 50 |
 Call of the Undaunted | Dungeons / General | 10 |
 Calm and Calculated | Summerset / Abyssal Geysers | 10 |
 Camonnaruhn Explorer | Necrom / Exploration | 5 |
 Can't Catch Me! | DLC Dungeons / The Cauldron | 10 |
 Candies and Cutpurses | High Isle / Companions | 50 |
| Canine Slayer | DLC Dungeons / Exiled Redoubt | 10 |
 Canonreeve Reaver | Dungeons / Elden Hollow I | 50 |
| Capstone Cave Explorer | Exploration / Cyrodiil | 10 |
 Captain Bones Destroyer | Exploration / Ebonheart Pact | 5 |
 Capture a Resource | Player VS Player / Alliance War | 10 |
| Carac Dena Explorer | Exploration / Aldmeri Dominion | 10 |
| Carapace Cavern Explorer | Solstice / Exploration | 5 |
 Card Conjurer | Necrom / Tales of Tribute | 10 |
 Card Connoisseur | High Isle / Tales of Tribute | 50 |
 Castle of the Worm | Quests / Main Quest | 10 |
 Castle Thorn Challenger | DLC Dungeons / Castle Thorn | 50 |
 Castle Thorn Conqueror | DLC Dungeons / Castle Thorn | 10 |
 Castle Thorn Vanquisher | DLC Dungeons / Castle Thorn | 10 |
 Casual Collector | Character / General | 5 |
 Catalog Crusher | Necrom / Exploration | 10 |
| Catch of the Day | Dungeons / Fungal Grotto I | 50 |
 Cauldron Conjurer | Holiday Events / Witches Festival | 5 |
| Cave of Trophies Explorer | Exploration / Coldharbour | 10 |
 Caws for Concern | Holiday Events / Witches Festival | 10 |
 Celestial Investigator | Quests / Craglorn | 50 |
 Celestial Style Master | Trials / General | 50 |
| Centurion's Ruin | Exploration / Coldharbour | 5 |
 Ceramic Panic | DLC Dungeons / Unhallowed Grave | 10 |
 Certified Jack-of-All-Trades | Crafting / General | 10 |
| Certified Jewelry Crafter | Crafting / General | 5 |
 Chainbreaker | Exploration / Dark Anchors | 10 |
| Chainsmasher | Necrom / Exploration | 10 |
 Challenge Cave Delver I | Recent Seasons / Challenge Difficulty | 5 |
 Challenge Cave Delver II | Recent Seasons / Challenge Difficulty | 10 |
 Challenge Cave Delver III | Recent Seasons / Challenge Difficulty | 15 |
| Challenge Incursion Breaker I | Recent Seasons / Challenge Difficulty | 5 |
| Challenge Incursion Breaker II | Recent Seasons / Challenge Difficulty | 10 |