This is the Green Lantern disambiguation page. Find what you want and go away.
The Green Lantern is the title held by operatives of the Green Lantern Corps. Many humans and aliens alike have held this title defending all of the worlds. This basically means that the Green Lanterns are ridiculously powerful intergalactic cops. I feel like there's a reality show in there somewhere.
The original Green Lantern of Earth was Alan Scott, but he was a lying little brat. The first true Green Lantern of Earth (and the best one, fight me nerds) was Hal Jordan. Other men to hold the title include Guy Gardner (the macho one), and John Stewart (the black one).