Revan is a Legends character from the game Knights of the Old Republic, which means he isn't part of current canon, though canon has given the name a small nod. He's one of the most popular characters in Star Wars gaming, mostly because his story is about falling to the dark side and finding a way back.
Is Revan canon?
No. Star Wars: Knights of the Old Republic was moved into Legends in April 2014 when Disney reorganized the continuity. There is one notable wink in canon: the Rise of Skywalker Visual Dictionary names one of the Final Order's legions Revan, after the ancient Sith Lord. That's a nod to the name, not a canon version of his story.
The short version of his story (Legends)
Revan was a Jedi who led the Republic's forces against the Mandalorians alongside his friend Malak. Then both of them turned to the dark side, and Revan became the Sith Lord Darth Revan. Their Sith forces fought the Republic and the Jedi in the Jedi Civil War, until Malak betrayed Revan and the Jedi captured him.
The Jedi wiped Revan's memory. In Knights of the Old Republic, a hero with no memory of the past sets out to stop Malak, and the game's famous twist reveals who that hero really is. Revan later left for the Unknown Regions, and his story carries on in later Legends material, including the online game Star Wars: The Old Republic. We're skipping the spoilers on purpose.
Why people love him
He's both a famous hero and a feared villain, and the story asks whether someone can come back from the dark side. It pairs well with other redemption arcs, like Ahsoka's white blades, which we cover in white lightsaber meaning.
Revan-inspired sabers
We carry three: the Fallen Revan, the more affordable Fallen Revan SE, and the premium Redeemed Revan. They're inspired by the character rather than being official products. The game-inspired collection has more, and the best lightsaber for dueling helps if you can't pick a blade type.
Like game characters? Starkiller's lightsaber from The Force Unleashed is also Legends, and Cal Kestis' lightsaber from Jedi: Fallen Order and Survivor is in current canon.
