Yes. You can celebrate an overseas marriage in Australia with a vow renewal or celebration of marriage. Tell your celebrant that you are already married so the occasion is clearly presented as a celebration rather than another legal marriage.

An overseas marriage is generally recognised here if it was valid where it took place and would be valid under Australian law. It cannot be registered again in Australia.

Keep the overseas certificate and check whether translations or other evidence are needed for the purpose you have in mind. Name-change rules vary, so check with the relevant registry or agency. If there is doubt about the marriage’s recognition, obtain advice before planning another legal ceremony.