Here is the full list of all 80 Mount & Blade: Warband achievements. It takes around 150-200 hours to unlock all of the achievements on Windows.
(MP) Kill 100 people with mounted projectiles.
You have completed the following achievements: Trick Shot, Khaaan!, Agile Warrior, and Harassing Horseman.
Kill 10 parties of Mountain Bandits.
(MP) Kill 50 foes with throwing axes.
You have completed the following achievements: Might makes Right, The Huscarl, Melee Master/Dexterous Dastard, and Holy Diver/Elite Warrior.
Get a character to elope.
Be chosen as marshall.
As a female character, Capture and sell three NPC lords.
Land a shot with a difficulty of 5 while using a throwing weapon.
Put a pretender on their rightful throne.
As a female character, help a female claimant reclaim her throne.
As a female character, give a companion character a great sword.
Kill 10 enemies with a throwing weapon's secondary function.
As a female character, make your own faction.
Amass a fortune of 100,000 denars.
Get one of your healing skills to 5.
Have two of the following skills at a 5; Looting, Inventory Management, Trade, or Prisoner Management.
Have two of the following skills at a 5; Trainer, Tactics, Leadership, or Persuasion.
Have a 7 in one of the following skills or a 5 in two; Tracking, Path-finding, or Spotting.
Get the engineering skill up to 5.
Get either two agility related skills to 5 or one to 7.
You have completed the following achievements: Mace in yer Face!, Spoil the Charge, Agile Warrior, and This is our land.
(MP) Win one round in battle mode.
(MP) Kill 50 cavalry while on foot, the enemy must be killed while mounted.
(MP) Win in Conquest mode.
(MP) Win a round of deathmatch mode.
As a female character, raise your renown to 50.
(MP) Kill 25 people with throwing weapons.
(MP) Kill 25 foes with a blunt weapon.
You have completed the following achievements: Abudant Feast, Mace in yer Face!, Sarranidian Nights, and Art of War/Melee Master.
(MP) Win a round of team deathmatch mode.
You have completed the following achievements: Might Makes Right, Choppy Chop Chop, Glorious Mother Faction, and Old school Sniper.
(MP) Perform 25 lance kills while mounted.
(MP) Slay 50 foes with slashing weapons.
Steal 3 cattle from a single village.
Kill 75 enemies with horse archery.
Get Married.
Defeat 10 enemy parties in the snowy regions of Calradia.
Face off against 100 enemies using custom battle mode.
Raid 3 caravans and raid 3 villages.
Kill 50 men as a female character.
As a ruler conquer 10 towns or castles.
Finish reading one book through the camping screen.
Make one of your ranged weapon skills 250.
As a ruler have 3 vassals.
Make one of your melee weapon skills 250.
You have completed the following achievements: Melee Master, Knights of the Round, Every breath you take, I dub thee/Good Samaritan.
(MP) In any multiplayer mode have more kills than deaths.
(MP) Your team successfully defended a castle in siege battle mode.
Promote one of your followers into a position of power.
Become the owner of at least 5 fiefs.
Make your own faction.
You and your army have killed or wounded 5,000 enemy troops.
Visit every major town in Calradia.
Harass wondering peasants on the map.
Camp in the Sarranid region of the map.
Have a -50 relation with a lord, village, or faction.
Land a shot with a difficulty of 6 while using a crossbow.
Get either two strength related skills to 5 or one to 7.
Kill or wound at least 500 enemies.
Win a battle against a lord or party who previously beat or captured you.
Eat 6 different types food concurrently.
Recruit 6 hero characters.
Raise your soldiers' morale from low to excellent.
Successfully defend a castle.
Pick a fight with a lord by insulting him or by challenging him to a duel.
Learn 3 poems from tavern bards.
Land a shot with a difficulty of 10 while using a bow and arrow.
Engage in a conversation with a hero character through the party screen.
Be granted your first fief.
Enter and win a tournament.
Sell 5 people to the ransom broker.
Cleanse the town of bandits in the opening mission.
Help a lord or party win a fight.
Install and play one mod.
Kill 75 enemies with throwing weapons.
As a female character get into a duel with male lord by insulting him.
Rule all of Calradia!
Assist your faction in conquering Calradia.
As a female character, become queen of all Calradia.