Travel visas for Australia are needed for each individual that wants to enter Australia, unless such individual is also an Australian passport holder or qualifying New Zealand passport holder.
There are several categories of Travel Visas and Travel Authorizations according to the purpose and duration of the trip.
An Australian Travel visa is required to visit Australia for a holiday, to visit family and friends or to conduct a short business trip. There are a number of different travel visas, depending on the purpose and duration of your visit.
If your are not a passport holder of one of the Countries in the ETA or EVV programs, you could be eligible for a Visitor Visa.