Knife

Knives (not to be confused with throwing knives) are a common weapon found in the Hunger Games, being the most plentiful weapon avalaible. Due to being easy to get and doubling as a tool, knives are some of the most used weapons in the games.

The 441st Games - Insanity
Knives were plentiful in the 441st Hunger Games, being scattered around the cornucopia. They were also available for sponsorship, costing $50 to send to a tribute.

A knife was used in the prologue of the games by an unidentified asylum patient to cut the intestines out of another patient, scaring the unknown witness of the deed.

Some time before the District 1 reaping, Miiko Dejong tracked down Baron Beckett's right hand man, who was stroking a knife. Miiko disarmed him of his knife, using his own weapon against him to get information from the man. She eventually disposed of the knife after she'd finished threatening the man.

During the games, the knife was used by many tributes. Cassieopeia Waverly used one to stab Courtney Dax during the bloodbath. Courtney then stole the knife, stabbing it into Cassieopeia's throat, killing her with her own weapon.

That night, Baron Beckett stole a long knife from the bags of Regina Evans, using it to threaten her. Baron then raped Regina, before slashing her stomach, revealing her intestines. Much like the  unidentified asylum patient above, Baron then ripped her intestines out, killing Regina.

Lilah Jollenbeck managed to find a knife in her backpack on Day 2, using it to cut her left wrist, attempting suicide. However, she quit her attempt at the last moment, instead opting to sheathe the weapon.

Posia Courtier discovered she had a small knife as well as her ally Arlen Variland, who possessed a knife as well.

Later, Harpy Diadem used a knife to stab the captive Araise Hasting in the shoulder.

Harley Luisina attempted to stab Harpey during Harpy's fight with Jonah Zarate, but her attack missed, resulting in her capture by Harpy.

Baron gave Penny Wheatgrove a knife to defend herself with while he looked for his missing ally Sam Kelly.

Miiko used a knife on the third day when she about stabbed a dying tribute. However, Tux Bowden revealed to her that it wasn't a tribute, but instead a ghost.

Later that night, Baron tracked down Penny for deserting him, where he used a knife to brutally maim the girl by cutting her eyes out, before slashing her throat. After that, he put his knife away, using his spiked club to finish the job. It is assumed that the knife Baron used to kill Penny used to belong to Regina.

Characters who have used Knives.
These are all the characters who have ever wielded a knife.
 * Unidentified Male Asylum Patient
 * Baron's Right Hand Man
 * Miiko Dejong
 * Cassieopa Waverly
 * Courtney Dax
 * Regina Evans
 * Baron Beckett
 * Lilah Jollenback
 * Posia Courtier
 * Arlen Variland
 * Harpy Diadem
 * Araise Hastings
 * Harley Luisina
 * Penny Wheatgrove