Yes it sure is!

The Victorian Certificate of Education (VCE) can be studied by adults and completed in one year (if you are an adult as it is assumed that you bring experience and knowledge learned outside the classroom to your studies. This enables you to complete your VCE in one year. You can also choose to take longer if you desire.)

Entry requirements for the Adult VCE

There are no formal entry requirements for to undertake VCE studies as an adult. However, you should contact your preferred provider to see if they have any minimum educational requirements for adult students.

Where can I study?

See here to search for providers of VCE education, note that although the majority are typical High Schools, some such as the Adult Community Centre are dedicated to adults in particular

More information can be found here