I have quite a few pets, probably more than I should since I have 4 Hunters. It's been a while since I listed them all too.
First, Cerah's pets. She's my first Hunter and my main, so I don't really have a naming-theme for any of her pets, except her spirit beasts, who all have a "dream" theme to their names. However, a lot of her pets ended up being named after either characters in stories either myself or my boyfriend had written, after Transformers, or as references to Starcraft.
Anyway, here are all the ones I can remember at the moment without logging on. I don't think I'm missing anyone.
Scorponok

Transformers/Beast Wars reference, my first pet. Also a reference to a TF fanfic I wrote,
"Vapour Trails"
Beauty

A reference to an old story my boyfriend wrote, where he named two Jurassic Park-style cloned raptors "Happy" and "Beauty". They were the pets of the character he partly based off me, so it kind of suited. Besides, I always wanted a pet dinosaur.
Bloodshock *now released

For my first Cunning Pet, I wanted to name him something really Orcish-sounding, and anything that had to do with blood seemed to match his colour scheme. RPwise, he was supposed to originally have been Cerah's father's pet, so it equally fitted. I later let him go, in order to tame ...
Ripley

Fell in love with this bugger the moment I set eyes on him. Because his heads look kind of like an Alien's (from the Aliens movies), I desided to name him after the movie's heroine, even though he's a male. Ripley is a rather androgynous word.
Tiamat
Originally

soon-to-be

Named after the Bablyonian mythological dragon whose body makes up the world, as well as the corrupted Guardian Force from Final Fantasy VIII. Warpstalkers look kind of like dragons, so I wanted to give her a dragonish name.
Ironhide

Another Transformers reference, plus since that skin is originally called the "Ironhide Devilsaur", I thought it was too good to change.
Daggoth
Originally

now

Named after the most important Cerebrate in Starcraft I,
Daggoth of Tiamat Brood, the right-hand bug of the Overmind. Cerebrates look like giant worms, so it suits him.
Reverie

The word "Reverie" means "daydream" or "thought". Appropriate since I dreamed about taming her, then I did! I desided to keep the "dream" theme for all my subsequent spirit beasts.
Deekah

Another, sort-of Starcraft reference. She's named after a
Zergling character in a very old fanfic of mine,
"Walk Without Rhythm"
Waspinator

Another Transformers/Beast Wars and "Vapour Trails" reference.
Peppermint

Named after his colour, plus it embarrassed the hell out of my bf for his main (a Mage) to be beat in a duel by a pet named Peppermint.
Belore

The word in the blood elf language for "Sun". Was originally going to be "Sin-Belore" or "Blood of the Sun", but the game wouldn't let me use the prefix "sin".
Vash

I picked her up in Sholozar while hunting for Loque'nahak, just because she's pretty. I don't know really where this came from -- it just suits her, for some reason.
Eris *released

Named after the Greek goddess of chaos, due to her colour-changing (hey, it's better than "Mood Ring", my bf's suggestion). She just wasn't the same after her colour-changing was "fixed", so I'll just say she was a casulty of the Cataclysm.
Oracle *released. Not clicking

Named after Oracle from the DC Comics series
"Birds of Prey".I totally forgot that was the name of the gorloc tribe in Sholozar when I named her, honestly.
Ravage

Yet another Transformers reference. I wanted to change him to the all-black gem skin, but it looks like that won't be happening anytime soon. I think I'll probably release him, since I have more than enough spirit beasts, and cats don't really click with Cerah.
Myst

Fit with the "dream" theme for my spirit beasts.
"Myst" was an old computer game where books were literally portals into new worlds.
Lana

Named after the protagonist in an old, original story I wrote, "Lana and the Ant". (I can't post that one online, in case it has a chance of being published one day)
Nightshade

(Oil-Stained)
Named after the protagonist of "Vapour Trails", my own character, an F-117 Nighthawk Decepticon.
Torrasque

After the
elite ultralisk in Starcraft I, a literally immortal, unstoppable killing machine (at least until you kill his cerebrate).
Dreamer

Again, sticking with my dream theme for spirit beasts, and also because I thought I must be dreaming if I ever manage to catch him!
Whew! I think I'll tackle my other hunters later. That took awhile!