In the real world, Lando is a variant and nickname of the name Orlando.
In the Star Wars universe, he's Lando Calrissian, administrator of the Cloud City, and frenemy of Han Solo. He appears in two Star Wars films, The Empire Strikes Back and Return of the Jedi. Although he betrays Han Solo, and turns him over to Boba Fett, he does so under duress from Darth Vader. He eventually helps Leia, Luke, and the others escape. He even helps Leia rescue the frozen Han Solo from Jabba the Hut.
In 2011, 12 boys were named Lando. If you're considering this as a nickname, Orlando ranked at #482.