There are multiple definitions - click on the translation that matches your context.

Teilnehmer

Substantiv

full

attendee

Comparative law notes

Germany

Often used in a meeting or conference context.

Definitions of attendee

English

someone who goes somewhere officially, usually regularly

More funding will be made available for charter school attendees.

English

someone who goes to a place or to an event, often a formal one

The sponsor will pay all related costs, including travel and accommodation costs for all attendees.