Melee Weapons

Swords are melee weapons which can be divided into 2 basic categories: Shortswords, and Broadswords. Shortswords have a very limited range and attack with a horizontal stabbing motion instead of an arc. Broadswords are swung overhead, which makes it easier to defeat flying and jumping enemies than shortswords.

(Quoted From http://terraria.gamepedia.com/Weapons)

Pre-Hardmode Swords

Lava Slasher

Thunderbringer prototype

Rainer Blade

Granite Shortsword

Granite Sword

Meteor Sword

Blade Of Arceon

Blade Of Aetherion

BSword 0%

BSword 5%

BSword 10%

Rapier Of Grass

Meteor Shortsword

Murarasa

Tidal Wave

Lights Rapier

Fiery Rapier

Desert Blade

Desert Shortsword

Blood Rapier

Death Anarchy

Nights Tip

Death Tyranny

Reaper of Slime

Hardmode Swords

True Phasesaber (all Color)

True Nights Tip

True Deaths Tyranny

True Deaths Anarchy

Ritual

Kairoseki Shortsword

Ichor Shortsword

Ichor Greatsword

Kairoseki Sword

Blade of the End

Crystal Meteor Sword

Cursed Sword

Cursed Shortsword

Division

Doomsday Blade

Caliburn

True Caliburn

Harpys Vengeance

Pre-Hardmode Yoyos

Yoyos are melee weapons that are flail-like, and when thrown, seek after the player's cursor

(Quoted From http://terraria.gamepedia.com/Weapons)

Tin Yoyo

Tungsten Yoyo

Silver Yoyo

Shady Yoyo

Platinum Yoyo

Meteor Yoyo

Nianye Yoyo

Lead Yoyo

Molten Yoyo

Iron Yoyo

Gold Yoyo

Ebone Yoyo

Dynasty Yoyo

Pearl Yoyo

Copper Yoyo

Boreal Yoyo

Hardmode Yoyos

Spooky Yoyo

Palladium Yoyo

Orichalcum Yoyo

Kairoseki Yoyo

Hallowed Yoyo

Ichor Yoyo

Cobalt Yoyo

Cursed Yoyo

Adamantite Yoyo

Spears are melee weapons that have decent range (somewhat better than swords), but attack using a stabbing motion (like a shortsword, except that spears can be aimed). Spears also have a good chance of hitting targets more than once, especially large enemies.

(Quoted From http://terraria.gamepedia.com/Weapons)

Pre-Hardmode Spears

Tungsten Fork

Wood Spear

Storm Brew

Tin Spear

Torrent

Silver Yari

Shadewood Spear

Rich Mahogany Spear

Spear of Grass

Iron Spear

Murakuda

Lead Sibat

Platinum Crescent Spear

Nights Lance

Granite Spear

Deaths Conquest

Golden Ranseur

Copper Spear

Fiery Spear

Corrupt Lance

Pre-Hardmode Boomerangs

Hardmode Spears

True Nights Lance

Terra Spear

True Death Conquest

Spear OFTE

Satan Trident

Ichor Voulge

Kairoseki Spear

Cursed Spear

Boomerangs are melee weapons that come back to the player after being thrown. Their damage is listed as melee likely because they're physically thrown and use no ammo.

(Quoted From http://terraria.gamepedia.com/Weapons)

No Content Till Future Updates

Hardmode Boomerangs

Adamantite Boomerang

Mythril Boomerang

Ichor Boomerang

Cobalt Boomerang

Cursed Boomerang

Flails are melee weapons that consist of an object linked to the player by a chain, which can either be thrown or fired. Thrown flails can be suspended around the player indefinitely, whereas launched flails immediately return to the player.

(Quoted From http://terraria.gamepedia.com/Weapons)