Do you think that deaf dogs know that they are deaf?

She might know that she is a little different. I don't think it bothers her. As long as you don't treat her any different sge should do well

If you can teach your Aussie braille, then use that opportunity to explain its challenge. If that doesn't work, then we should assume it considers itself normal.
Actually one of the earlier poster had it about right. I don't think canines dwell on their situation. As Cesar Milan says, they live in the present.

dogs don't dwell on impairments the way people do.

I knew a deaf dog, always seemed to know what was going on,but someone said that deaf dogs can hear sounds that humans can't like higher pitched noises. So they can hear some things.

Good question - - There is a chat group called Deaf Dogs.... I believe Liz C. started it. Check it out with them.

I'm fostering a deaf cat who, interestingly enough, is quite a talker- she talks to get my attention, to tell me where she is in the room, and to get me to open a door. I believe she's aware of missing something, of not having all the information. She's a great cat and I think she'll make someone a fine companion, but she is definitely handicapped in taking care of herself and in avoiding danger. She is making me very aware of how much hearing means to a cat. Right now I'm looking at my sleeping cat whose ears are pointing at me. It wouldn't take much for him to wake if I moved suddenly or dropped something, or if another animal entered the house.

I have a 14yo little girl that has gone deaf in the last few years. I think born into deafness they might not know, but Tia will cock her head and try and understand what I am asking her to do. I now use hand signals and she responds quite well. The handicap is me having to find her when I want her to come in.

Clearly she can see the other dogs are excited and that probably excites her as well. Personally, I don't think dogs recognize any handicaps they may have. They just know what "is" and not what "could be".

Haven't been around deaf animals, but I work with lots of deaf people in volunteer groups and they have a lot over us hearing people! they don't think they are handicapped at all and neither does your dog!

Wow... so many answers seem right on here. It's true her other senses make up for her hearing- so I would bet she feels vibrations more acutely than the other dogs... her vision is probably better as well.
I doubt she knows something is different about her. As stated before, you can't miss something you've never had. She sounds like a very special dog- and I'm sure she's happy to have you.