If you are under 18 and you are married to the applicant, your parent or guardian might be able to sponsor your partner if they are an Australian citizen, Australian permanent resident or eligible New Zealand citizen.
Permanent residents and New Zealand citizens
Australian permanent resident or eligible New Zealand citizen sponsors must usually live in Australia.
New Zealand citizens
If a New Zealand citizen is not eligible to be a sponsor, consider a New Zealand Citizen Family Relationship visa (subclass 461).