4 legged NO. 2 legged maybe?
Avoiding the obvious non PC witticism. Yes and No. General cruises do not allow dogs on board but transatlantic with Cunard allows dogs to be quartered on the ship separately not in the cabin of a passenger. At least that used to be the case. …. Neil.
Unless the dog is for a registered blind person, no is the answer.
There are a number of cruise lines who do singles cabins including Cunard; Fred Olsen and Thomson and quite a few more but often it is a twin you will be getting and the surcharge is anything from 20 to 70% There was a time that NCL had a programme for singles and they put them in touch with each other and they shared a cabin, not sure if they still do this but call the special cruise desk on 0800 091 1629 and someone will be able to help you in more detial.
Actually there are a few cruise lines that do take dogs. I suggest you click on the search section and use key word 'dogs'. Quite a while back this question was asked and one lady in particular was dead against dogs travelling cos of stress. She was a dog trainer or something like that and her answer made a lot of sense. If you can't find it let me know and I will look for you. But I don't think OV take dogs.
Guide dogs (called Seeing Eye in the US) are allowed on many cruise lines, as are some dogs which are used to sense attacks in their owners. If you just want to take Fido along for a holiday then the answer is no.