 Snuffed Out | DLC Dungeons / Black Drake Villa | 50 |
| So Clean in Sunport | Solstice / Exploration | 10 |
 Soaked to the Gills | DLC Dungeons / Shipwright's Regret | 10 |
 Social Adept | Character / General | 5 |
 Softloam Cavern Explorer | Exploration / Ebonheart Pact | 10 |
| Soldier of Apocrypha Apprentice | Character / Class | 10 |
| Soldier of Apocrypha Master | Character / Class | 15 |
| Solstice Climbing Club | Solstice / Exploration | 10 |
 Solstice Larcenist | Solstice / General | 15 |
 Solstice Master Angler | Solstice / General | 10 |
| Solstice Master Explorer | Solstice / Exploration | 15 |
| Solstice Monster Hunter | Solstice / Quests | 5 |
| Solstice Monster Slayer | Solstice / Quests | 10 |
| Solstice Monster's Bane | Solstice / Quests | 15 |
 Solstice Pathfinder | Solstice / Exploration | 10 |
 Solstice Skyshard Hunter | Solstice / General | 15 |
 Songbird Silencer | Morrowind / Exploration | 10 |
 Sophisticated Shadowfoot | Thieves Guild / Quests | 15 |
| Sorcerer Class Mastery | Character / Class | 50 |
 Sorcerer Slayer | Player VS Player / General | 10 |
 Soul Bombardier | Trials / Rockgrove | 10 |
 Soul Burst | Character / Scribing | 10 |
 Soul Magic Skill Master | Quests / Main Quest | 50 |
 Soul Mates | DLC Dungeons / Depths of Malatar | 5 |
| Soul Rancher | DLC Dungeons / Black Gem Foundry | 10 |
 Soul Savior | Trials / Rockgrove | 50 |
 Soul Shriven in Coldharbour | Quests / Main Quest | 10 |
| Soul Shriven on Solstice | Solstice / Exploration | 10 |
 Soul Shriven Style Master | Crafting / General | 15 |
 Soul Splitter | Dungeons / Banished Cells I | 50 |
| Soulbinder Subordinate Slayer | DLC Dungeons / Black Gem Foundry | 10 |
| Soulbinder Tyrant Slayer | DLC Dungeons / Black Gem Foundry | 10 |
| Southern Elsweyr Cave Delver | Dragonhold / Exploration | 10 |
| Southern Elsweyr Larcenist | Dragonhold / General | 15 |
| Southern Elsweyr Master Explorer | Dragonhold / Exploration | 15 |
| Southern Elsweyr Skyshard Hunter | Dragonhold / General | 10 |
 Southpoint Savior | Quests / Aldmeri Dominion | 5 |
 Spare the Servants | Trials / Kyne's Aegis | 10 |
 Spaulder of Ruin | Deadlands / Antiquities | 15 |
| Specialist about Solstice | Solstice / Quests | 15 |
 Speed Reader | DLC Dungeons / Black Drake Villa | 50 |
| Speed Reader | DLC Dungeons / Scrivener's Hall | 50 |
 Speedy Sload Slayer | Trials / Cloudrest | 50 |
 Spellscar Defender | Quests / Craglorn | 15 |
 Spider Cult Slayer | DLC Dungeons / Cradle of Shadows | 10 |
 Spider Egg | Crafting / Alchemy | 5 |
| Spider Slayer | Exploration / Daggerfall Covenant | 5 |
 Spies and Spirits | Character / Companions | 50 |
 Spindleclutch I Assassin | Dungeons / Spindleclutch I | 50 |
 Spindleclutch I Conqueror | Dungeons / Spindleclutch I | 10 |