Mr. Higgins.

My cat's name is MEOWCALYPSE.

TANK

In Torchlight I named my dog "T-Bone".  On a side note, my current Dragon Age dog is named "Boner", but I can't recall what my Fable II dog is named.

Diabetes.

Jamiroquai.

I named my dog Wiggles.

Nondrick.
 
Massive credit to anyone who gets this reference.

The dog must always be named Harpua. 
 
The cat must always be named Poster Nutbag.

I named the cat Rapier. An old Bombcast reference.

I named the cat Dog.

I named mine Hugh Jass.

Fido. 
 
And, yes, I have no creative side.

Frisky

I named my pet ferret "Gizmo". I really love that name, because it really screams Geek.

Battlecat

Deacon Fresh. It's become my default in-game pet name.

My cat is called Mr. Cat

Tobyjack after my own dog.

I seem to call every dog in any game 'Dogmeat,' obviously after playing Fallout 3.

Pet

EDIT:
 
I didn't see that this was about Torchlight.  
I thought we were getting all sentimental about our pets...
....shit.

My pet is a cat named Bubastis. +10 if you remember what that's from.

What other name would i give it? it obviously was dog 
 
 
 
 
 
 
 
 
 
(my pet was a cat)

" I seem to call every dog in any game 'Dogmeat,' obviously after playing Fallout 3. "

ferret: Fernando

Tater.

I called my dog "Blondie" because of my dog, Blondie.

Skree for the lizard thingy! :P

Mr. Woofles. I name every virtual pet Mr. Woofles.

Tigger

Pepperoni 

C-Tates

I picked the cat and left the name Spot. You know, like Data's cat.

" What other name would i give it? it obviously was dog          (my pet was a cat) "

I named my alchemist's repphibian pet Newton after the last of the magicians.
It moves hilariously and kills everything while I pick up loot. It might as well be a raptor.

" @NickL said:

" What other name would i give it? it obviously was dog          (my pet was a cat) "

you're so funny and original "

Dogmeat.
Obviously.

I called my raptor thing Blerp.

Ruin, after the name of the horse from Darksiders.

I named my dog Waffle.