A purple lightsaber, sometimes referred to as an amethyst lightsaber, is an uncommon lightsaber blade color. In Star Wars Canon, Mace Windu wields a purple-bladed lightsaber. In Star Wars Legends, Revan, Anakin Solo, Jaina Solo and Ki-Adi-Mundi all wield a purple-bladed or violet-bladed lightsaber.

Revan uses a violet lightsaber along with a red lightsaber during the Old Republic era. Jaina Solo and her brother Anakin Solo both use violet lightsabers. Jedi Council Member Ki-Adi-Mundi wields a purple lightsaber as a Jedi Knight prior to attaining the rank of Jedi Master during the Clone Wars (he switches to a blue lightsaber after becoming a Jedi Master). Additionally, a purple with a black core lightsaber blade and a violet with black core blade are playable blade color options in the video game Star Wars: The Old Republic.