Has anyone every changed the name of a dog they got?

I adopted a retired greyhound whose track name was "Ritter".  I didn't like that, and also wanted him to start a new life with a new name, so I renamed him Nicholas.  

Maya was called Babe at the rescue and who knows what before that.  I just didn't like the name Babe the Boxer.

Both my boys had different names when I got them.  Grady was a rescue named Buddy.  Aspen was ESPN (ICK!!!)  Both boys took to their new names pretty well.  Like someone said, they have a ton of names that they answer to anyways. For example, when Grady & I are going out, Grady's name is Freddy, as in "are ya ready, Freddy?"

Yep changed names MANY times.  Billy was "Huggins" (we do pet therapy -- you NEVER want to encourage kids to manhandle the dog with a name like that) -- no one knew his name because he was found at a rest area on I-4.  But he HATED the name Huggins.  He had some very bad stuff happen to him in foster care, and man, we don't even SAY that name accidentally.  It upsets him.
 
Just be 100% consistent.  Pick your new name and stop using the other totally.  I mean -- how long did it take you after you got married to answer to Mrs. _________?? (and if you're like me, it took me about 2 eager heartbeats in the GOOD marriage, and in 10 years of the 'bad' first marriage I never DID take his name! LOL)

Great thread - thanks for starting it!
 
Let's see....
 
My first dog we started with the name Dixie but it just didn't fit so she became Lani which was a perfect fit for a semi-perfect pup [].
 
Then came our new pup who started as Noah because it meant calm & peaceful in some baby book and I wanted calm & peace in my home LOL.  DH renamed him to Bandit because he wore a mask and stole all his women!  Name stuck so Bandit it is and he has definitely lived up to it!
 
My first foster (who came from the ACC named Scout) was renamed by the lady who adopted him out as Buddy.  At least it was better than Cuddles which she originally though of - YUCK!   At our house we call him Bud, Bud-bud, Budmeister, and Lil Dude - he comes to them all!   
 
Last one is Sirius (pronounced SIGH RUSS).  She is an ACD foster who was originally named Cypress which is a good name for a red ACD but not a blue LOL!  My DH was always leaving out the P in her name when calling Cypress and when I found out the connection with the Dog Star we formally made the change.
Hopefully her adopting family will get her into agility where she belongs and she will be a great big shiny star! [] 

I change most of my dogs' names.  Zhi was named Charlie (hello? she's a GIRL!).  My husband's dog Doug was named "Dooley" - not even "dually" which would have been kind of cool, but "Dooley" like, I don't know, Howdy-Dooley or something.  Sheesh.  My late trainer got in a lot of dogs for retraining and he used to come to me to get more appropriate names for the dogs that were unfortunate in their previous homes.  He got a lot from farmers and many of these poor dogs were named "Boy," "Dawg," or "Girl."

Others had the indignity of cutsie-poopsie names you woudn't in a millions years want to be caught dead shouting loud enough to be heard 400 yards away.  "BOO-BOOO - lie DOWN!"  []

My parents first dog was named: Unke von Behle. Unke means toad.
They renamed her Susi.
The next one kept it's name.
We renamed three of our dogs: Lacie is now Chelsea, Sruffy Doo is now Chase and DeeDee is now Sydney.
My friend had named our poodle Gidget. Don't particular like that name, but she listens to it very well.

I forgot about this one earlier, but we had a cat whose name at the shelter was Rage. I wonder why he was having trouble finding a home. We took him home and called him Peanut, after my mom's childhood cat because she thought he looked like her cat, but he was  the fattest cat i've ever seen. 

Absolutely have changed dogs' call names.  Think about all the "pet" names you have for your own dogs who respond to them.  (Gracie is also Grace/Gracie Grace, Mira, Princess, Mawma, Meathead, etc)  They figure out you're talking to them if you say it enough. 
Any time a Dobe came in to rescue with an inappropriate name (ahem, Satan?!?!  Devil?!?!  I'm serious, people would name their dogs these things) the name was changed.  The dogs don't care - they get it.
 
Gracie's litter name was "Cha Cha"... and when I later heard the story of an employee of the shelter who "had a problem with her cha cha" I said THAT'S IT!  She's not keeping that name!!

Hi guys!  I am a newbie here.  I have 2 jack russell terriers and a sheltie-jack mix.  I just got my female and she was already named-Nikki.  I really don't like that name and it certainly doesn't fit her.  Any suggestions on a new name?  My other female mix dog name is Madame Aja Lynn Dittamus (anyone ever seen Labyrinth?) My male jack is Buddy. 

Others had the indignity of cutsie-poopsie names you woudn't in a millions years want to be caught dead shouting loud enough to be heard 400 yards away. "BOO-BOOO - lie DOWN!"

Hehehehe, I call Teenie (who's proper name is Teenie Weenie) Boo boo, allllll the time. I kind of like cutsie names, though, or I wouldn't have named the dogs Teenie Weenie and Emma Nems.....

I changed Blue's name when I adopted him it was Sam or Sammy. I didn't like the name for him and my brother came up with Blue.

Yup!  Tux was Uno because he only had "one" decend.  *laughing*  I wasn't going to leave him with that legacy forever!! 
 
Plus - I wanted a fancy show name for my fancy Doberman Pinscher! *giggling*

Yes.  I changed my older dogs name, Bear, from Beau to Bear.  The main reason was that he was getting confused between Beau and No...   He was only 4 mos old at the time, so he picked up on the change quickly.  The name, Bear, fits him as he's now a 1 yr old 100 lb black lab.

My poor dog was named Dunkin as a baby, probably because they feed him Dunkin Dougnuts.  Then my shelter rescued him from North Carolina and renamed him Raleigh.  I loved his name but by other dog Holly came running when I called Raleigh, so hubby renamed him Red.