I do not have information about organizations but if your level of study is Masters, there are many Universities who provide scholarships for research based programs. Some of these scholarships cover your full tuition fee.
I don't think you're going to find a full undergraduate scholarship. They are extremely rare and to the best of my knowledge, are only available to exceptional domestic (Canadian) students.
This is a very common question for many students. I can only give you a small suggestion as to where you can search for that. But bear in mind that, it will be very tough to get one: Australia Scholarships