What is the name of the hidden blade used by Assassin's Creed characters?

The signature concealed weapon used by Assassin's Creed characters is called the Hidden Blade. It is a retractable blade worn on the forearm and designed for discreet close-range attacks.

The Hidden Blade is one of the franchise's most recognizable pieces of equipment. In the games, Assassins commonly use it for stealth assassinations, although later entries add variations, upgrades, and other functions.

The weapon's design changes across historical periods and individual protagonists. Some versions are mounted beneath the wrist, while others incorporate mechanisms suited to the character's clothing, tools, or combat style. The games also connect the blade to Assassin traditions and initiation rituals.

The Phantom Blade is a different weapon associated with Arno Dorian in Assassin's Creed Unity. It combines a concealed blade with a compact ranged mechanism, but it is not the general name for the iconic retractable weapon.