Yes, in many cases, you can apply to extend your stay in Australia while holding a Visitor Visa, but it depends on the conditions of your visa. Some visas carry a “No Further Stay” condition, which means you cannot apply for another visa while in Australia. If this condition is not applied, you may lodge a new visitor visa application before your current one expires. The Department of Home Affairs will consider your reasons, financial capacity, and compliance with visa rules when deciding. It is essential to apply early to avoid overstaying, which can impact future visa applications.