Annam may refer to:
- A name of Vietnam used prior to 1945.
- Annam (French protectorate), a former subdivision of French Indochina, now the central region of Vietnam
- Annam (name), a female given name of Arabic origin
- Annam (Chinese province), the southern-most province of the Chinese Empire (679–939), now part of northern Vietnam
- Annam (Dungeons & Dragons), a character in Dungeons & Dragons role-playing universe
- SAS Tafelberg, Danish tanker originally named Annam
- Annam (food), food made of rice common in Andhra Pradesh (South India)