Formal:
* Presenter: This is the most common and neutral term.
* Awarder: This emphasizes the act of giving the award.
* Ceremony Host: If the person is also in charge of hosting the entire event.
Informal:
* Award giver: This is a simple and straightforward term.
* Prize-giver: This term is often used for smaller, less formal events.
* Hander-outer: This is a casual and less formal term.
The specific term used will depend on the formality of the event, the person's role, and the specific language preferences of the organizers.