Gui"don (?), n. [F. guidon, It. guidone. See Guide, v. t.] 1. A small flag or streamer, as that carried by cavalry, which is broad at one end and nearly pointed at the other, or that used to direct the movements of a body of infantry, or to make signals at sea; also, the flag of a guild or fraternity. In the United States service, each company of cavalry has a guidon.

The pendants and guidons were carried by the officer of the army.

2. One who carries a flag. Johnson.

3. One of a community established at Rome, by Charlemagne, to guide pilgrims to the Holy Land.