my new d/h comes on saturday 9th but i would like to change his name is this possible with a 2/12yr old d/h

You can call it anything you want, but it still won't come back
Spring

My DownJess came to live with us when she was about the same age. Her previous owner had died, so we don't know what she answered to when she lived with him. It took her about ten minutes to realise that Jess was her name now and about five more when it was expanded to DownJess because of her jumping up for a cuddle habit. Nowadays, she answers to everything from DownJess to Miss Mouse; as long as cuddles are involved you can call her anything you like. And she still doesn't come back...

My old lurcher was a rescue, when my husband was alive he called him one name and I called him another. Bless him he answered to both and we was his 3rd home so he had 4 different names. Yes he did come back. Good luck with the newbe.