celebrant

Plural: celebrants

Noun

• a person who is celebrating
• an officiating priest celebrating the Eucharist
• A person who officiates at a religious ceremony, especially a marriage or the Eucharist.
• A person who conducts formal ceremonies in the community, particularly weddings, baby namings, renewals of wedding vows and funerals.
• A person who is celebrating something.

Synonyms

celebrater, celebrator