I'd use Maple for a dog or a cat myself.
I love
Kate. My husband's aunt is Cáitríona and she goes by
Kate. I know another
Kate but I don't know what her full name is.
Katie is more common here as a full name than
Kate especially for little girls and
Kitty or Cathy/Kathy are more common nicknames than
Kate here. I know a little girl Sarah-Kate as well.