Bosses in Twilight Princess

Mini Boss Appendix

 * Ook
 * King Bulblin, Round I
 * Dangoro
 * Shadow Bird Rider
 * Twilit Bloat
 * King Bulblin, Round II
 * Deku Frog
 * Skull Kid
 * King Bulblin, Round III
 * Death Sword
 * Darkhammer
 * Dark Nut
 * Aeralfos
 * Zant's Phantom
 * King Bulblin, Round IV

Boss Appendix

 * Twilit Parasite: Diababa
 * Twilit Igniter: Fyrus
 * Twilit Aquatic: Morpheel
 * Twilit Fossil: Stallord
 * Twilit Ice Mass: Blizzeta
 * Twilit Arachnid: Armogohma
 * Twilit Dragon: Argorok
 * Usurper King Zant
 * Ganon's Puppet Zelda
 * Dark Beast Ganon
 * Dark Lord Ganondorf, Part I
 * Dark Lord Ganondorf, Part II

Boss Names
The Dungeon Bosses of Twilight Princess each have names that are twists on other names, with the exception of the bosses of the Palace of Twilight and Hyrule Castle.

Diababa is a twist on Deku Baba. Also, the prefix "dia" can mean "more than one", as in dialogue. The Diababa has more than one head.

Fyrus is a twist on Darbus, which is the name of the Goron patriarch who was transformed into Fyrus.

Morpheel is a twist on Morpha, the boss of the Water Temple in Ocarina of Time

Stallord uses the prefix "Stal", meaning any animated skeleton, and the suffix "Lord", to make Stallord, meaning that Stallord is "Lord of the Stals". Stallord is the largest stal encountered in the Zelda series.

Blizzeta is a play on Yeta, the female Yeti who becomes Blizzeta, and the word blizzard.

Armogohma is a play on "Armos", the animated statues that attack Link, and "Gohma", the insect-like boss that appears in several other Zelda games.

Argorok is a play on "Kargarok", the bird-like enemy that is common throughout the game.