General Titles
Paragon Hero - Awarded for reaching Level 30
Epic Hero - Awarded for reaching Level 60
Caturday Survivor - Awarded to all characters that existed before the May 18/19 2013 exploit / server rollback.
Underdark Explorer - Gained through a limited time code
Savage North Explorer - Gained through a limited time code
Slayer Titles
Aberrant Slayer - Awarded for killing 500 Aberrants
Bandit Slayer - Awarded for killing 500 Bandits
Cultist Slayer - Awarded for killing 500 Cultists
Devil Slayer - Awarded for killing 500 Devils
Dragon Slayer - Awarded for killing 50 Dragons
Drow Slayer - Awarded for killing 500 Drow
Duergar Slayer - Awarded for killing 500 Duergar
Elemental Slayer - Awarded for killing 500 Elementals
Foulspawn Slayer - Awarded for killing 500 Foulspawn
Ghost Slayer - Awarded for killing 500 Ghosts
Giant Slayer - Awarded for killing 50 Giants
Gnoll Slayer - Awarded for killing 500 Gnolls
Goblin Slayer - Awarded for killing 500 Goblins
Golem Slayer - Awarded for killing 500 Golems
Kobold Slayer - Awarded for killing 500 Kobolds
Lizardfolk Slayer - Awarded for killing 500 Lizardfolk
Lycanthrope Slayer - Awarded for killing 500 Lycanthropes
Nasher Slayer - Awarded for killing 500 Nashers
Ogre Slayer - Awarded for killing 50 Ogres
Orc Slayer - Awarded for killing 500 Orcs
Shadow Slayer - Awarded for killing 500 Shadows
Skeleton Slayer - Awarded for killing 500 Skeletons
Spider Slayer - Awarded for killing 500 Spiders
Troll Slayer - Awarded for killing 50 Trolls
Wight Slayer - Awarded for killing 500 Wights
Zombie Slayer - Awarded for killing 500 Zombies
Quest Titles
Arrowed - Awarded for completing the Tower District quest line
Hero of Blacklake - Awarded for completing the Blacklake District quest line
Ruiner - Awarded for completing Blackdagger Ruins quest line
Hero of Neverwinter - Awarded for completing Neverdeath Graveyard quest line
Spellplague Survivor - Awarded for completing the Spellplague quest line
Leadership
Sergeant - Reach level 5 in Leadership
Captain - Reach level 10 in Leadership
General - Reach level 20 in Leadership
Leatherworking
Apprentice Leatherworker - Reach level 5 in Leatherworking
Mailsmithing
Apprentice Mailsmith - Reach level 5 in Mailsmithing
Platesmithing
Apprentice Platesmith - Reach level 5 in Platesmithing
Tailoring
Apprentice Tailor - Reach level 5 in Tailoring
Region Origins
of Amn
of Baldur's Gate
of Cormyr
of the Dalelands
of Dragon Coast
of Gray Vale
of Luruar
of Luskan
of the Moonshae Isles
of Myth Drannor
of Netheril
of Neverwinter
of the Northdark
of Waterdeep
Comments
General Titles
Paragon Hero - Awarded for reaching Level 30
Epic Hero - Awarded for reaching Level 60
Caturday Survivor - Awarded to all characters that existed before the May 18/19 2013 exploit / server rollback.
Underdark Explorer - Gained through a limited time code
Savage North Explorer - Gained through a limited time code
Slayer Titles
Aberrant Slayer - Awarded for killing 500 Aberrants
Bandit Slayer - Awarded for killing 500 Bandits
Cultist Slayer - Awarded for killing 500 Cultists
Devil Slayer - Awarded for killing 500 Devils
Dragon Slayer - Awarded for killing 50 Dragons
Drow Slayer - Awarded for killing 500 Drow
Duergar Slayer - Awarded for killing 500 Duergar
Elemental Slayer - Awarded for killing 500 Elementals
Foulspawn Slayer - Awarded for killing 500 Foulspawn
Ghost Slayer - Awarded for killing 500 Ghosts
Giant Slayer - Awarded for killing 50 Giants
Gnoll Slayer - Awarded for killing 500 Gnolls
Goblin Slayer - Awarded for killing 500 Goblins
Golem Slayer - Awarded for killing 500 Golems
Kobold Slayer - Awarded for killing 500 Kobolds
Lizardfolk Slayer - Awarded for killing 500 Lizardfolk
Lycanthrope Slayer - Awarded for killing 500 Lycanthropes
Nasher Slayer - Awarded for killing 500 Nashers
Ogre Slayer - Awarded for killing 50 Ogres
Orc Slayer - Awarded for killing 500 Orcs
Shadow Slayer - Awarded for killing 500 Shadows
Skeleton Slayer - Awarded for killing 500 Skeletons
Spider Slayer - Awarded for killing 500 Spiders
Troll Slayer - Awarded for killing 50 Trolls
Wight Slayer - Awarded for killing 500 Wights
Zombie Slayer - Awarded for killing 500 Zombies
Quest Titles
Arrowed - Awarded for completing the Tower District quest line
Hero of Blacklake - Awarded for completing the Blacklake District quest line
Ruiner - Awarded for completing Blackdagger Ruins quest line
Hero of Neverwinter - Awarded for completing Neverdeath Graveyard quest line
Spellplague Survivor - Awarded for completing the Spellplague quest line
Leadership
Sergeant - Reach level 5 in Leadership
Captain - Reach level 10 in Leadership
General - Reach level 20 in Leadership
Leatherworking
Apprentice Leatherworker - Reach level 5 in Leatherworking
Mailsmithing
Apprentice Mailsmith - Reach level 5 in Mailsmithing
Platesmithing
Apprentice Platesmith - Reach level 5 in Platesmithing
Tailoring
Apprentice Tailor - Reach level 5 in Tailoring
Region Origins
of Amn
of Baldur's Gate
of Cormyr
of the Dalelands
of Dragon Coast
of Gray Vale
of Luruar
of Luskan
of the Moonshae Isles
of Myth Drannor
of Netheril
of Neverwinter
of the Northdark
of Waterdeep
Deity Affiliation
Amaunatoran
Chauntean
Corellites
Kelemvorite
Moradinian
Oghmanyte
Selunite
Silvanite
Sunite
Tempuran
Tormite
Tymoran
That might not be all of them but it's a pretty darn good start.
http://neverwinter.gamepedia.com/Achievement