Bigthan, or Bigthana, was a eunuch and chamberlain in the court of Ahasuerus. He was one of the officials who kept the door and conspired with Teresh against the king’s life.
Bigthan appears in the account of the conspiracy against Ahasuerus. The plot was discovered and recorded in connection with Mordecai’s service at the royal court.
The name is explained as “gift of God.” Bigthan held a chamberlain’s position in the Persian court and is identified with the doorkeepers of the king.