The gonfalon, gonfanon, gonfalone is a type of heraldic flag or banner, often pointed, swallow-tailed, or with several streamers, and suspended from a crossbar in an identical manner to the ancient Roman vexillum. It was first adopted by Italian medieval communes, and later, by local guilds, corporations and districts. The difference between a gonfalon with long tails and a standard is that a gonfalon displays the device on the non-tailed area, and the standard displays badges down the whole length of the flag.

A banner can be a flag or another piece of cloth bearing a symbol, logo, slogan or another message. A flag whose design is the same as the shield in a coat of arms is called a banner of arms. Also, a bar-shaped piece of non-cloth advertising material sporting a name, slogan, or other marketing message is also a banner.