Every legal marriage in Australia needs witnesses — but couples often aren’t sure who can do it, or how many they need. Here’s a quick, clear guide.
How many witnesses do you need?
An Australian marriage legally requires two witnesses, and both must be aged 18 or over. Along with you, your partner and your authorised celebrant, these two witnesses must be present at the ceremony and sign the marriage documents.
Who can be a witness?
The good news is that witnesses can be almost anyone you choose, as long as they are 18 or older and can understand what is happening. Many couples ask:
- A parent or sibling
- A close friend
- Their best man or maid of honour
- A family member or guest
They don’t need any special qualifications — they simply need to be present, of age, and able to genuinely witness your marriage.
What do the witnesses actually do?
On the day, your two witnesses will watch you marry and then sign the marriage paperwork alongside you and your celebrant. Their signatures confirm that the marriage took place. Your celebrant guides everyone through the signing, so there’s nothing to worry about.
Can we have witnesses at a small elopement?
Yes. Even the smallest legal ceremony still needs two witnesses aged 18 or over. If you’re eloping just the two of you, talk to your celebrant early — many can help arrange suitable witnesses so your ceremony can go ahead.
Frequently asked questions
Can a family member be a witness?
Yes — parents, siblings and other relatives can all be witnesses, as long as they are 18 or over.
How old do witnesses have to be?
They must be at least 18 years old.
What if we don’t have two people to witness our wedding?
Let your celebrant know in advance. For small ceremonies and elopements, witnesses can often be arranged for you.
Planning a small or legal-only ceremony?
We help couples with everything from witnesses to paperwork. Get in touch and we’ll make sure your ceremony is set up correctly.