officiant
US /əˈfɪʃ.i.ənt/
UK /əˈfɪʃ.i.ənt/

1.
celebrante, oficiante
a person who officiates at a religious service or ceremony, especially a marriage
:
•
The wedding officiant guided the couple through their vows.
O celebrante do casamento guiou o casal através de seus votos.
•
She trained to become a certified wedding officiant.
Ela treinou para se tornar uma celebrante de casamento certificada.