Weapons

A Weapon is any object used to inflict damage by either means of physical or non-physical (i.e. elemental). A common form of weapon is the Keyblade.

King Mickey

 * Star Seeker

Terra
Terra's weapon seems more inclined to power.
 * Terra's Keyblade

Aqua
Aqua's keyblade is more inclined to helping magic
 * Aqua's Keyblade

Ven
Ven's keyblade seems more turned to speed agility and hit combos.
 * Ven's Keyblade

Master Xehanort

 * Keyblade (Unknown)

Master Xehanort's Apprentice

 * Apprentice's Keyblade

Sora
Sora is the first keyblade master controled in the series (if you go by release date). Sora's weapons are all variations of his normal keyblade with a relative apperance to where he earned that keyblade. Its noted that his abilities with the keyblade become more advanced as the series moves on.

Keyblade

 * Kingdom Key
 * Jungle King
 * Three Wishes
 * Crabclaw
 * Pumpkinhead
 * Fairy Harp
 * Wishing Star
 * Spellbinder
 * Metal Chocobo
 * Olympia
 * Lionheart
 * Lady Luck
 * Divine Rose
 * Oathkeeper
 * Oblivion
 * Ultima Weapon
 * One Winged Angel
 * Diamond Dust

Other

 * Dream Shield
 * Dream Rod
 * Dream Sword
 * Wooden Sword

Donald
Donald uses staves, these usually either increase attack since Donald's usually is very low or increase his magic proffisiancy. Sora can fight like Donald in his awakening if he keeps the staff.
 * Mage's Staff
 * Morning Star
 * Magus Staff
 * Warhammer
 * Shooting Star
 * Wisdom Staff
 * Wizard's Relic
 * Lord Fortune
 * Silver Mallet
 * Dream Rod
 * Grand Mallet
 * Violetta
 * Save the Queen
 * Hammer Staff
 * Fantasia
 * Meteor Strike

Goofy
Goofy ironically uses Shields though he is the captain of the Disney Knights. His shields are usually either inclined to Defending himself from attacks so he can unleash more weaker attacks or strengthining his own reducing his defense. Sora can fight like Goofy if he chooses the dream shield.
 * Knight's Shield
 * Stout Shield
 * Smasher
 * Golem Shield
 * Mythril Shield
 * Adamant Shield
 * Onyx Shield
 * Dream Shield
 * Gigas Fist
 * Genji Shield
 * Herc's Shield
 * Defender (shield)
 * Save the King
 * Massive Bumper
 * Seven Elements

Riku

 * Toy Sword (Destiny Islands only)
 * Soul Eater
 * Kingdom Key

Company of Sora

 * Tarzan - Spear
 * Aladdin - Scimitar
 * Riku - Soul Eater
 * Peter Pan - Dagger
 * Ariel - Fist & Tail
 * Jack Skellington - Fist
 * Beast - Claws

Final Fantasy Characters

 * Leon - Gunblade
 * Yuffie - Shuriken
 * Cloud - Bandaged Buster Sword
 * Sephiroth - Masamune

Destiny Islands

 * Tidus - Wooden Pole
 * Selphie - Jump Rope
 * Wakka - Blitzball

Villains

 * Cards of Sword - Card's Axe
 * Cards of Hearts - Card's Lance
 * Clayton - Shotgun
 * Jafar - Magic Staff
 * Captain Hook - Pirate's Rapier
 * Maleficent - Witch's Staff
 * Giant Ursula - Trident
 * Jafar Genie - Magic

Other

 * King Triton - Trident

Heartless

 * Defender - Defender (shield)
 * Wizard - Wizard's Relic
 * Ansem - Dark Keyblade-dual sided Soul Eater

Kingdom Hearts: Chain of Memories

 * Everything - Attack Cards

Keyblade

 * Kingdom Key
 * Oathkeeper
 * Oblivion
 * Sweet Memories
 * Hidden Dragon
 * Star Seeker
 * Gullwing
 * Follow the Wind
 * Monochrome
 * Photon Debugger
 * Mysterious Abyss
 * Fatal Crest
 * Hero's Crest
 * Circle of Life
 * Wishing Lamp
 * Bond of Flame
 * Rumbling Rose
 * Guardian Soul
 * Sleeping Lion
 * Decisive Pumpkin
 * Two Across
 * Winner's Proof´
 * Fenrir
 * Ultima Weapon

Other

 * Struggle Sword
 * Struggle Hammer
 * Struggle Wand

Donald

 * Mage's Staff
 * Hammer Staff
 * Victory Bell
 * Save the Queen
 * Comet Staff
 * Lord's Broom
 * Meteor Staff
 * Rising Dragon
 * Wisdom Wand
 * Shaman's Relic
 * Nobody Lance
 * Save the Queen+
 * Shaman's Relic+
 * Centurion
 * Centurion+
 * Pleasure Mushroom
 * Pleasure Mushroom+
 * Precious Mushroom
 * Precious Mushroom+
 * Premium Mushroom

Goofy

 * Knight's Shield
 * Genji Shield
 * Save the King
 * Falling Star
 * Chain Gear
 * Dreamcloud
 * Ogre Shield
 * Knight Defender
 * Akashic Record
 * Nobody Guard
 * Save the King+
 * Akashic Record+
 * Freeze Pride
 * Freeze Pride+
 * Happy Mushroom
 * Happy Mushroom+
 * Platinum Mushroom
 * Platinum Mushroom+
 * Limited Mushroom

Company of Sora & Final Fantasy Characters

 * Captain Jack Sparrow - Skill & Crossbones
 * Auron - Battlefields of War
 * Aladdin - Scimitar
 * Simba - Proud Fang
 * Tron - Identity Disc
 * Mulan - Sword of the Ancestor
 * Beast - Beast Claws
 * Jack Skellington - Bone Fist
 * Tifa - Powerful Fist
 * Cloud - Bandaged Tsurugi
 * Leon - Gunblade
 * Yuffie - Shuriken

Kairi

 * Kairi's Keyblade

Struggle

 * Hayner - Struggle Sword
 * Vivi - Struggle Sword
 * Seifer - Struggle Sword
 * Setzer - Struggle Sword

Villains

 * Shan Yu - Barbar's Sword
 * Captain Barbossa - Pirate's Gun & Sword
 * Undead Pirate-A - Pirate's Axe
 * Undead Pirate-B - Pich
 * Undead Pirate-C - Pirate's Gun

Others

 * Riku - Soul Eater, Way to the Dawn
 * King Mickey - Kingdom Key D
 * Genie - Genie's Keyblade
 * Sephiroth - Masamune
 * Stitch - Laser Guns / Ukelele
 * Peter Pan - Dagger

Heartless

 * Bookmaster - Akashic Record
 * Shaman - Shaman's Relic
 * Rune Master - Akashic Record+
 * Tamer - Shaman's Relic+
 * AntiForm - Claws
 * Retro-AntiForm - Claws
 * AntiForm-Vampire - Claws
 * Santa-AntiForm - Claws
 * Data-AntiForm - Claws
 * N°1 - Pleasure Mushroom
 * N°2 - Happy Mushroom
 * N°3 - Pleasure Mushroom+
 * N°4 - Happy Mushroom+
 * N°5 - Precious Mushroom
 * N°6 - Platinum Mushroom
 * N°7 - Precious Mushroom+
 * N°8 - Platinum Mushroom+
 * N°9 - Premium Mushroom
 * N°10 - Limited Mushroom
 * Organization XIII Mushrooms - Winner's Proof

Nobody

 * Dragoon - Nobody Lance
 * Gambler - Nobody Guard
 * Xemnas - Ethereal Blades
 * Xigbar - Gun Arrows
 * Xaldin - Lances
 * Vexen - Shield
 * Lexaeus - Axe Sword
 * Zexion - Lexicon
 * Saïx - Claymore
 * Axel -Chakram
 * Demyx - Sitar
 * Luxord - Cards
 * Marluxia - Scythe
 * Larxene - Knives
 * Roxas - Struggle Sword, Struggle Wand, Struggle Hammer, Kingdom Key, Oathkeeper, Oblivion