Is ocean a pretty name for a girl?

It's a terrible ugly name.

Its a much prettier middle name in my opinion.

I think she would be made fun of for the rest of her life.

its a nice word in general but for a human its not really a name

http://www.babynamescience.com/baby-name/Ocean-boy

Not in English

I don't think so.

What’s her last name pacific or Atlantic?

For goodness sake do not lumber the poor child with some stupid non-name because you think that it is pretty.

Give her a real name then you can use whatever family pet name that you feel like and she can also ask you to stop using it when she gets old enough to tell you how much she desn't like being called by it.

No, it's a silly name for a human.